Yim Gastroenterology Liver
And Endoscopy Centre

Mount Elizabeth Novena Specialist Centre
38 Irrawaddy Road, #07-39
Singapore 329563


Monday to Friday: 9am to 5.30pm
Saturday: 9am to 1.00pm


Tel: (+65) 6684 1811
Fax: (+65) 6684 1911
Email: dryim@yimgastro.com.sg



    1. Presented a talk on “clinical outcome of enteral stents in palliation of malignant upper gastrointestinal obstruction” during the New England Endoscopy Society Meeting at Boston, USA, September 1999.
    2. Guest speaker and demonstrator, International Workshop for EUS. Organised by Gastrointestinal Endoscopy Society of Thailand (GEST) and Laparoscopic-Endoscopic Centre of Rajavithi Hospital (LECRH) on
      27th January 2003. Gave two lectures and performed endoscopic procedures (EUS, EUS FNA, Coeliac plexus block) which were beamed live to audience at auditorium.
    3. Invited overseas moderator, 3rd International Advanced Endoscopy Workshop, 9th – 11th October 2003, Selayang Hospital, Selangor, Malaysia
    4. Invited overseas speaker and “live” endoscopy demonstrator, EUS workshop, Unitas Hospital, Pretoria, South Africa from 5th March to 7th March 2004
    5. Clinical attachment on 3D EUS and contrast enhanced EUS, Nagoya University Hospital, Nagoya, Japan, 1st to 4th June 2004
    6. Invited overseas speaker, Endoscopic and Laparoscopic Congress, Unification Palace, Ho Chi Minh City, Vietnam, 14th to 16th October 2004
    7. Invited overseas moderator, 5th International Advanced Endoscopy Workshop, Selayang Hospital, Kuala Lumpur, Malaysia. 17th to 18th November 2005
    8. Invited overseas speaker, Respiratory and GI Workshop. Lecture “Helicobactor Pylori and Gastric Cancer”. Sutera Harbour Resort, Kota Kinabalu, Sabah, East Malaysia. 11th December 2005.
    9. Invited international faculty (endoscopy demonstrator and speaker), Grand Rounds in Gastrointestinal Cancer, Lilavati Hospital and Research Centre and S L Raheja Hospital, Mumbai, India, 20th to 22nd January 2006
    10. Invited international faculty (endoscopy demonstrator and speaker), 7th Annual Internal Medicine Scientific Meeting and Workshop on Endo Ultrasonography, Medan, Indonesia, 4th March 2006
    11. Invited overseas moderator, Annual Workshop in Interventional GI Endoscopy, Dewan Jemerlang, Faculty of Medicine, University of Malaya Medical Centre, KL, Malaysia. 14th to 16th April 2006.
    12. Invited international faculty (endoscopy demonstrator), 3rd National Endoscopy Workshop, Birdem Auditorium, Dhaka, Bangladesh, 29th April 2006
    13. Invited international faculty, ERCP workshop, Adam Malik Hospital, Medan, Indonesia, 27th May 2006
    14. Invited international faculty, EUS workshop, Chiangmai University Hospital, Chiangmai, Thailand on
      9th August 2006
    15. Invited international speaker, Gastroenterology Update 2006. Gave a lecture on “Infection of the hepatobiliary system”. Adam Malik Hospital, Medan, Indonesia. 9th September 2006
    16. Invited international faculty, Endoscopy Workshop (ERCP and EUS), Regional Congress of Internal Medicine, M. Djamil Teaching Hospital, Padang, West Sumatra, Indonesia, 18th Sept 2006. Performed the first ERCP to be done in the hospital then.
    17. Invited international speaker on “Clinical Effectiveness of Endoscopic Ultrasonography”, 12th Annual Scientific Congress of Vietnamese Association of Gastroenterology”, 6th Congress of South East Asian Nation, Hanoi, Vietnam 19th to 21st October 2006.
    18. Invited moderator, 6th International Advanced Endoscopy Workshop 2006, Selayang Hospital, Malaysia,, 10th Nov to 11th November 2006
    19. Invited overseas speaker, ASEAN EUS workshop, topic presented “EUS of submucosal tumour”, Waterfront Hotel, Cebu, Philippines, 28th November 2006.
    20. Invited overseas moderator, Endoscopy Workshop, Asia Pacific Digestive Week, Cebu, Philippines, 27th to 28th November 2006.
    21. Invited international faculty, EUS training workshop, Rumah Sakit Umum Dr. Pirggadi, Medan, Indonesia. 18th to 20th December 2006.
    22. Invited international faculty (moderator and demonstrator). 6th Annual GI Endoscopy Live Demonstration 2007. Chulalongkorn Hospital, Bangkok, Thailand. 20th to 21st February 2007.
    23. Invited overseas speaker. Philippines Digestive Health Week. Gave lecture on “Introduction to EUS”. EDSA Shangri-La Hotel, Manila, Philippines. 12th to 14th March 2007.
    24. Invited international faculty, Endoscopy Workshop, Indonesian Digestive Disease Week (IDDW) and International Endoscopy Workshop 2007. Gave a lecture on “Endoscopic Ultrasonography” as well as performed “live” endoscopic demonstration. 5th to 7th April 2007.
    25. Invited international faculty. Speaker and demonstrator. Gave lecture on “Interventional EUS”. Trigonum SUDEMA (Surabaya-Denpasar-Malang) Update in Gastroenterology-Hepatology. Dr Saiful Anwar Hospital, Malang, Indonesia. 27th April 2007.
    26. Invited international faculty. “Role of Endoscopic Ultrasound in Oncology” and EUS workshop. Bangkok Hospital, Thailand. 1st August 2007.
    27. Invited overseas speaker and symposium chairman. 2nd Asia Pacific EUS Workshop. Gave lecture on “Therapeutic EUS in oncology”. In conjunction with Gut 2007 Annual Scientific Meeting of Malaysian Society of Gastroenterology and Hepatology. Pacific Sutera Hotel, Kota Kinabalu, Sabah.
      29th August to 1st September 2007.
    28. Invited overseas speaker. Lunch Symposium on “Laser enhanced Imaging”. Asia Pacific Digestive Disease Week. Kobe, Japan. 15th October to 18th October 2007.
    29. Invited overseas speaker. Singapore Medicine Consumer and Scientific Seminar. Medan, Indonesia.
      23rd February 2008.
    30. Invited overseas speaker. Asian Primary Care Innovators: Inspiring Excellence in GI, Cardiovascular and Respiratory Care. Lectured on :Extra-oesophageal manifestations of GERD”. Shangri-La Hotel Kowloon, Hong Kong. 14th Mar to 16th Mar 2008.
    31. Invited overseas faculty, EUS and optical chromoendoscopy workshop, Prince of Songkhla University Hospital, Hat Yai, Thailand, 25th to 26th July 2008.
    32. Invited international faculty. 3rd Asia Pacific EUS workshop, Ashok Hotel, New Dehli, India, 18th September 2008.
    33. Invited overseas speaker and faculty, ESD Seminar, Okayama University Hospital, Okayama, Japan, 18th to 20th November 2008.
    34. Invited penal specialist, Pfizer GI advisory board meeting, Ho Chi Minh City, Vietnam, 7th February 2009. (also CONDOR trial update)
    35. Invited international speaker (HP and GERD lecture), Asian Primary Care Innovation Meeting, Taipei, Taiwan, 14th March 2009.
    36. Invited international faculty, Advanced Endoscopy Workshop, Yangon General Hospital, Myanmar, 29th to 30th April 2009.
    37. Invited international faculty, (speaker as well as demonstrator), Gastrointestinal Endoscopy Workshop, Choray Hospital, Ho Chi Minh City, Vietnam, 30th and 31st July 2009.
    38. Invited international faculty, (speaker and demonstrator), Biennial National Congress of Gastroenterology and Hepatology, Sangla Hospital and Khartika Discovery Plaza Hotel, Bali, Indonesia, 13th to 16th Aug 2009.
    39. Invited international faculty (endoscopy demonstrator), ISGCON (India Society of Gastroenterology Conference), Golden Jubilee Celebration. Kolkata, India, 13th December 2009.
    40. Invited international faculty (speaker), 1st Myanmar GI & Liver Scientific Meeting, Yangon, Myanmar, 27th to 28th February 2010.
    41. Invited international faculty (demonstrator), 3rd Endoscopy Hands-on Workshop, Sripat Endoscopy Centre, Faculty of Medicine, Chiangmai University, Chiangmai, Thailand, 18th March 2010.
    42. Invited international faculty (speaker and demonstrator), 2nd ERCP and EUS Endoscopy Workshop,Choray Hospital, Ho Chi Minh City, Vietnam, 2nd to 3rd April 2010.
    43. Invited international faculty (speaker and demonstrator), “Endoscopy – Live” workshop organized by Gastroenterological & Digestive Endoscopy Society of Sri Lanka and College of Surgeons of Sri Lanka, 11th Aug 2010.
    44. Invited international faculty (speaker and demonstrator), Endoscopy Workshop, 108 Military Hospital, Hanoi, Vietnam, 12th to13 th October 2010.
    45. Invited Chairperson and speaker. Asia Educators Meeting on Condor study. Le Meridien Hotel, Chong Qing, China, 11th to 12th Dec 2010.
    46. Invited international faculty, National Endoscopy Workshop, GI and Liver Society Scientific Symposium, Yangon General Hospital, Yangon, Myanmar, 22nd to 24th Feb 2011
    47. Invited international faculty, Invited Francisco Roman Memorial Lecture speaker and State of the Art Lecture Speaker, Phillipine Digestive Health Week, Edsa Shangri-La Hotel, 7th to 9th March 2011.
    48. Invited overseas plenary speaker. “COX 2 inhibitor and NSAIDS – GI risks”. 7th Pain and Inflammation Summit. Shangri-La Hotel, Bangkok, Thailand. 25th to 26th June 2011.
    49. Invited international faculty, speaker and demonstrator (lectured on “EUS for pancreatic cancer – is it still relevant in 2011?). 4 th Asia Pacific EUS workshop, Shenyang, China, 8th to 9th July 2011.
    50. Invited faculty (live endoscopy demonstrator), 4 th UMS-HQE Endoscopy Workshop 2011, Queen Elizabeth Hospital, Kota Kinabalu, Sabah, East Malaysia, 28th to 29th July 2011.
    51. Invited faculty (live endoscopy demonstrator), Phillipines Society of Digestive Endoscopy PSDE Live Endoscopy Workshop, National Kidney and Transplant Institute, Manila, Phillipines, 17th to 19th August 2011.
    52. Invited speaker (topic “Interventional EUS”), Beijing Tiantan Hospital, Capital Medical University 2 nd Symposium on GI and liver diseases, Tiantan Hospital, Beijing, China, 19th to 20th Nov 2011.
    53. Invited faculty, 14 th National Academic Endoscopic Ultrasound Conference & 4 th Shanghai International Pancreatology Forum, Changhai Hospital, Shanghai, China, 25th to 26th Nov 2011.
    54. Invited faculty, 2 nd GI & Liver Scientific Meeting, Yangon, (lectured on therapeutic advanced colonoscopy and also chaired a “meet the expert session”), Myanmar, 28th to 29th Jan 2012.
    55. Invited faculty, Health Seminar, Hotel Incontinental Phnoh Penh, Cambodia, 25th February 2012
    56. Invited speaker and endoscopy demonstrator, First National Congress of Digestive Endoscopy, organised by Vietnam Federation of Digestive Endoscopy, Hanoi, Vietnam, 28th July 2012
    57. Invited Speaker, Public Seminar on “Stroke and Liver Disease”, Phnom Penh, Cambodia, 25th August 2012
    58. Invited international faculty, “Live Endoscopic Workshop”, Asia Pacific Digestive Week, Bangkok, Thailand, 6th December 2012
    59. Invited international speaker, “EUS of sub-epithelial lesions – basic anatomy and echogenicity”, Asia Pacific EUS Forum, Asia Pacific Digestive Week, Bangkok, Thailand, 8th December 2012
    60. Invited speaker, “EUS in pancreatic cancer”, XVIIth Annual Surgical Conference and the IVth Nursing Care Seminar, Khmer Soviet Hospital, Phnom Penh, Cambodia, 21st to 22nd February 2013
    61. Invited international speaker, 1st ASEAN Confederation of Internal Medicine, SMX Convention Centre, Manila, Philippines, 7th May 2013
    62. Invited speaker,”Chronic constipation and its management”, Hotel Rizqun, Bandar Sri Begawan, Brunei, 28th May 2013
    63. Invited delegate, MOU Parkway Hospitals and Zabuthiri Specialist Hospital, Myanmar Information and Convention Centre, Nay Pyi Taw, Myanmar, 22nd June 2013
    64. Chairman, Upper GI symposium, GI Hep 2013, Copthorne King’s Hotel, 29th June 2013
    65. Invited international faculty, Pre-congress ERCP workshop, Annual Academic Sessions of College of Surgeons of Sri Lanka 2013, Hemas Hospital, Colombo, Sri Lanka, 19th August 2013
    66. Invited international faculty for “live demonstration” and lecture on “EUS of sub-epithelial lesions”, EUS workshop, Shengjing Hospital of China Medical University, Shen Yang, China, 23rd November 2013
    67. Invited overseas speaker on “Endoluminal stenting – from top to bottom” 3rd Myanmar GI & Liver Conference, Yangon, Myanmar, 9th March 2014
    68. Invited international faculty, endoscopy demonstrator, post conference International Endoscopy Workshop, Yangon, Myanmar, 10th March 2014
    69. Invited international faculty, Mid Term Update, Association of Physicians of India, West Bengal Branch, Gateway Hotel, Kolkata, India, 1st May 2014
    70. Invited International Faculty, ERCP Workshop, Mandalay General Hospital, Mandalay, 31st October 2014
    71. Invited International Faculty, International Endoscopic Ultrasound Congress, Shenjing Hospital, Shenyang, China, 3rd to 5th April 2015
    72. Invited international faculty, 2nd Endoscopic Ultrasound Live Workshop, 13th EUS Task Force Asia Pacific Meeting, Tata Medical Centre, Kolkata, India, 25th to 26th July 2015.
    73. Invited International Faculty, (lectured on “Stents in Gastrointestinal Tract Disease”), 4th Myanmar Liver & GI International Scientific Meeting, Yangon, Myanmar, 13th February 2016. 
    74. Invited International Faculty, (lectured on “Diagnostic EUS” and performed live endoscopy procedures), EUS Workshop, Bach Mai Hospital, Hanoi, Vietnam, 23rd to 24th April 2016.
    75. Invited International Faculty (lectured and performed live endoscopy procedures), EUS TAP Workshop, Yangon General Hospital, Yangon, Myanmar, 28th to 29th July 2016.
    76. Invited International Faculty (lectured on “EUS Fine Needle Aspiration” and performed live endoscopy procedures), EUS – Application and Future Developments, Bai Chay Hospital, Halong, Hanoi, Vietnam, 12th to 13th September 2016.
    77. Invited international faculty (lectured on Interventional EUS), 11th Meeting on Gastroenterology of South East Asian Countries, organized by VNAGE, Hanoi, Vietnam, 25th November 2016.
    78. Invited International Faculty (lectured on “complications of ERCP” and performed live endoscopy procedures), 2nd Endoscopy Conference, Zhong Shan Hospital, Fudan University, Shanghai, China, 3rd December 2016.
    79. Invited International Faculty, Training Workshop on EUS and ERCP. Dept of Gastroenterology and Hepatology, Defence Services Medical Academy, No 2 Military Hospital, Yangon, Myanmar, 12th to 13th January 2017.
    80. Invited International Faculty, ERCP and EUS workshop, Selayang Hospital, Kuala Lumpur, Malaysia, 14th to 16th May 2017.
    81. Invited International Faculty and Discussant, EUS Masterclass, Asia Pacific Digestive Disease Week APDW, Hong Kong, 24th Sept 2017.
    82. Invited International Faculty, EUS Task Force of Asia Pacific Workshop, 23rd Vietnam Federation of Digestive Endoscopy VFDE, Hanoi, Vietnam, 22nd to 24th November 2017.
    83. GI Advisory Board Meeting, Takeda, Dubai, 25th February 2018.
    84. International Speaker, Health Talk Event, Yangon, Myanmar, 10th March 2018.
    85. Invited International Faculty and Speaker, The 3rd National Conference on Gastrointestinal Endoscopy, Ho Chi Minh City, Vietnam, 20th to 21st April 2018.
    86. Invited International Faculty and Speaker (with live demonstration), EUS and ERCP Workshop, Bai Chay Hospital, Halong, Vietnam, 14th June 2018.
    87. Invited International Faculty and Speaker (with live demonstration), EUS Workshop, Vietnam Germany Friendship Hospital, Vietnam, 15th June 2018.
    88. Invited international faculty (speaker and endoscopy demonstrator), Anhui Annual Congress of Gastroenterology and Digestive Endoscopy, Anhui, China, 17th to 19th August 2018.
    89. International teaching faculty, ESD hands-on workshop, UEGW, Vienna, Austria, Oct 2018.
    90. Moderator, EUS Masterclass, Asia Pacific Digestive Week APDW, Seoul, Korea, 15th Nov 2018.
    91. Invited speaker and discussant, NSAIDS Expert Forum, Kuala Lumpur, Malaysia, 4th Nov 2018.
    92. Invited international faculty, speaker and endoscopy demonstrator, 4th Vietnamese Gastrointestinal Endoscopy Congress – VGEC, Halong, Vietnam, 19th to 20th April 2019.
    93. Invited international faculty, speaker (lecture in chinese on “Stenting in malignant oesophageal obstruction”) and live endoscopy demonstrator, Shengjing Hospital International Summit Forum on Gastroenterology, Hepatology and Endoscopy, Shenyang, China, 9th to 11th August 2019.
    94. Guest speaker, Book Launch, Medan, Indonesia, 8th Sept 2019.
    95. International invited faculty (lecture on “EUS in oncology”), International Gastroenterology and Hepatology Update XV 2019, Medan, Indonesia, 30th Nov to 1st Dec 2019.
    96. Moderator, EUS Masterclass, Asia Pacific Digestive Week, Kolkata, India, 12th to 14th Dec 2019. 
    97. International faculty (speaker), 75th Platinum Jubilee of the Annual Conference of the Association of Physicians, India – APICON, Agra, India, 6th to 9th Jan 2010.

    1. Speaker (in Mandarin) at Tan Tock Seng Hospital’s public forum on ‘Rheumatoid arthritis and its gastrointestinal complications’ ( February 1997)
    2. Translated a full script on ‘Gallstones’ from English to Chinese language for a public forum lecture organised by the National Foundation of Digestive Diseases, Singapore. ( August 1997)
    3. Lectured on ‘Peptic Ulcer and Gastritis’ at the Port of Singapore Authority auditorium as part of their healthy lifestyle programme. ( January 1998 )
    4. Presented a paper during the 13th Annual Scientific Meeting organised by the Gastroenterological Society of Singapore at Sheraton Towers Hotel on 12th April 1998.
    5. Poster presentation at Tan Tock Seng Hospital Annual Scientific Meeting in 1997 and 1998.
    6. ‘Live’ interview over Television Corporation of Singapore TCS 8 ‘Good Morning Singapore’ Mandarin Program on the topic “Alcohol and Health” on 10th February 1999.
    7. Presented a talk in Mandarin to the public on “Cancer of the pancreas and the biliary system” during the 13th National Foundation for Digestive Diseases Day held at Mandarin Hotel on 23rd July 2000.
    8. Oral and poster presentations at the 15th Annual Scientific Meeting organised by the Gastroenterological Society of Singapore held at Sheraton Towers. The oral presentation was on the study regarding the 5 day HP eradication regime for patients with duodenal ulcers whereas the poster presentation was on the clinical outcome of enteral stents for palliation of malignant upper gastrointestinal obstruction, 30th October 2000.
    9. Chairman, Organising Committee and Speaker, GP seminar on “Gastrointestinal Endoscopy Update” held at Seminar Room, Tan Tock Seng Hospital. Topics presented include “Endoscopic palliation of GI luminal malignancy” as well as “Endoscopic Ultrasound – an emerging procedure”, 14th April 2001.
    10. Speaker, ICU Basic Nurses Course on “Acute GIT bleeding” on 20th July 2001.
    11. Speaker (public forum on bleeding per rectum in Mandarin), National Foundation of Digestive Diseases Day, August 2001 at Mandarin Hotel.
    12. Demonstrator and treasurer, National Endoscopy Workshop held at National University Hospital on
      27th October 2001.
    13. Member, organising committee for the Gastroenterological Society of Singapore Annual Scientific Meeting held at Sheraton Hotel, 28th October 2001.
    14. Speaker at Hougang Polyclinic CME lecture for doctors on “gallstone disease” on 13th March 2002.
    15. Invited speaker at Television Corporation of Singapore TCS 8 Good Morning programme (Mandarin) on “Gallstone disease with live interview at TCS studio, 20th March 2002.
    16. Invited speaker at Toa Payoh Polyclinic on the topic “Dyspepsia – Diagnosis and Treatment” on 5th June 2002.
    17. Speaker on “Acute GI emergencies” for the Basic Critical Care Nursing Course at TTSH, 5th July 2002.
    18. Course Director, Pre-congress Endoscopy Workshop, 36th Annual Combined Surgical Meeting. Endoscopic procedures were done at Endoscopy Centre and beamed “live” to audience at Theatrette,
      1st August 2002.
    19. Speaker on topic “Treatment of Gastro-oesophageal reflux disease” organised by Gastroenterological Society of Singapore for a GP symposium at Sheraton Tower Ballroom on 25th August 2002.
    20. Chairman of public symposium in Mandarin on “Your lifestyle and Digestive Wellness” organised by National Foundation for Digestive Diseases, Mandarin Court, Mandarin Hotel, Singapore, 15th Sept 2002.
    21. Invited speaker on topic “ An update on clinical application of EUS” at Gastroenterology Journal Club of Mount Elizabeth Hospital on 11th February 2003.
    22. Invited Speaker on “Acute GIT bleeding” for the Basic Critical Care Nursing Course, Tan Tock Seng Hospital, 18th June 2003.
    23. Invited Speaker on “Colorectal cancer” in Mandarin at Bishan Community Club organised by the Singapore Cancer Registry, 2nd August 2003.
    24. Invited speaker on “Acute Pancreatitis” for the Master of Nursing Course at NUS on 5th Sept 2003
    25. Organising Committee member, Asia Pacific Digestive Week, Raffles City Convention Centre, Singapore,
      27th to 30th September 2003.
    26. Course Co-Director, GI Endoscopy Workshop, Asia Pacific Digestive Week 2003 at Changi General Hospital on 27th September 2003
    27. Invited Teaching Faculty, “Hands-On” Endoscopy Workshop in Animal Lab, AsiaPacific Digestive Week 2003 at National University Hospital on 28th September 2003
    28. Invited speaker on Gastroenterology session “All that trouble and my scope is normal? – Management options in functional gastrointestinal disease” for the National Healthcare Group (NHG) Annual Scientific Congress 2003, Raffles City Convention Centre, Singapore, 4th October 2003.
    29. Symposium Coordinator and Speaker, Gastroenterology Update on GI cancers, Conference Room, Tan Tock Seng Hospital, Singapore, 22nd November 2003.
    30. Chairman, Mandarin Symposium on “Health Supplements, Drugs and Digestive Health”, National Foundation Digestive Diseases Day, Mandarin Hotel, Singapore, 23rd November 2003.
    31. Invited Speaker on “Acute GIT bleeding” for the Basic Critical Care Nursing Course, Tan Tock Seng Hospital, 26th May 2004.
    32. Coordinator and speaker, Gastroenterological Society of Singapore CME programme, Conference Room 2, Level 1, Tan Tock Seng Hospital, 26th June 2004
    33. Invited speaker on “Bloating and Gas”, Gastroenterological Society of SingaporeAnnual Scientific Congress, Mandarin Court, Meritus Mandarin Hotel, 24th October 2004
    34. TTSH Coordinator for HMDP visiting expert Prof Jacques Deviere, Belgium visit to Singapore. Organised talk and live endoscopic demonstration for him January 2005
    35. Speaker, Gastroenterology Slide Quiz (CME for medical officers), Tan Tock Seng Hospital, 7th February 2005
    36. Speaker, Update in Gastroenterology symposium for GP, Theatrette, Tan Tock Seng Hospital, 8th October 2005
    37. Speaker, TTSH Clinico-pathological conference. Topic presented “Update on diagnostic and therapeutic endoscopy”, TTSH, 5th August 2006.
    38. Speaker and Chairman of Chinese symposium on “Prevention of Digestive Cancers – What you should know” public seminar organized by National Foundation for Digestive Diseases. Mandarin Court, Meritus Mandarin, Singapore. 15th October 2006.
    39. Course Director, Fujinon EUS workshop. Endoscopy Centre, Tan Tock Seng Hospital. 4th November 2006.
    40. Speaker, Gastroenterology Update for GP. Topic presented “Gastric cancer and Helicobactor Pylori”. Conference Room, TTSH. 4th November 2006.
    41. Invited speaker for the ASEAN EUS Workshop. Topic presented “Principles and Equipments of EUS”. National University Hospital. 22nd November 2006.
    42. Speaker. Gastric Cancer Awareness Week. Lecture on “Dyspepsia” in Mandarin at Kallang Community Club. 14th August 2007.
    43. Invited local speaker. Johns Hopkins International Medical Centre Oncology Seminar. Gave lecture on “Endoscopy in Gastric Cancer”. Theatrette, Tan Tock Seng Hospital. 10th September to 12th September 2007.
    44. Speaker on “New diagnostic and therapeutic tools on endoscopy”. GP symposium. Seminar Room, Level 3, TTSH. 6th October 2007.
    45. Invited speaker on “Acute pancreatitis”. Master of Nursing Course. Lecture Room, MD5, Level 2, DGMS.
      10th October 2007.
    46. Trainer, 5th ASEAN Basic Hands-on EUS Course, Animal Holding Unit, National University of Singapore.
      11th January 2008
    47. Speaker. Therapeutic upper GI endoscopy – state of the art lecture. GESS CME Upper GI symposium. Regent Hotel, Singapore. 3rd May 2008
    48. Invited faculty, Asia Pacific Basic Hands-on EUS course, ASTC Seminar Hall, National University Hospital, Singapore, 9th to 10th January 2009.
    49. Chairperson Session II, Crohn’s Disease, Obesity and Pancreatitis. MOH-Mayo Clinic Update 2009, Auditorium, College of Medicine Building, Singapore. 16th to 17th January 2009.
    50. Speaker, Family Practice Skills Course (Gastrointestinal Diseases), Health Promotion Board Auditorium,
      8th March 2009.
    51. Co-course director, Endoscopy Workshop, GI Hep 2009, Changi General Hospital, Singapore, 19th June 2009
    52. Speaker, “ Enteral Stenting – indications, techniques and long term outcome”, Postgraduate course, GI Hep 2009, 18th June 2009
    53. Speaker, “ Small bowel evaluation – Putting things in context”, GI Hep 2009, Grand Copthorne Waterfront Hotel, Singapore, 21st June 2009
    54. Co-chairperson, Update of treatment success in NERD/GERD, Goodwood Park Hotel, Singapore,
      17th Aug 2009
    55. Invited local faculty, Diagnostic & Therapeutic Endoscopy – From Basic to Advanced, in conjunction with Boston International Live Endoscopy Course, Advanced Surgery Training Centre, National University Hospital, Singapore, 8-9th October 20009.
    56. Invited local faculty, Multidisciplinary symposium on Gastric Cancer – New Endoscopic Techniques in the Diagnosis and Treatment of Gastric Cancer, Copthorne Waterfront Hotel, Singapore, 14th November 2009.
    57. Organising Committee Member, Endoscopy Workshop, Tan Tock Seng Hospital, GI Hep 2010,
      18th June 2010.
    58. Chairperson, Endoscopy Symposium, GI Hep 2010. Grand Corpthorne Waterfront Hotel, Singapore,
      19th June 2010.
    59. Speaker and Chairperson, Hot Topics in GI Management. Lecture on “Approach to Dyspepsia”. Equinox, SwissHotel, Singapore, 19th June 2010.
    60. Co-Chairman, TTSH Quality Day, 1st October 2010, Theatrette, Tan Tock Seng Hospital.
    61. Speaker, Chapter of Gastroenterology Post Graduate Programme, “The endoscopist and the unresectable upper GI tumour”, NUSS Kent Ridge Guild House, 13th November 2010.
    62. Invited moderator, Hands on session, 9th Asia Hands on EUS workshop, ASTC, National University Hospital, 28th January 2011.
    63. Chairperson, Pancreaticobiliary session, Asia Pacific Digestive Week, Suntec City Convention Centre, Singapore, 1st October 2011.
    64. Facilitator, Hands on Animal Workshop, Asia Pacific Digestive Week, Advanced Surgery Training Centre, National University Hospital, Singapore, 1st October 2011.
    65. Moderator, Live Endoscopy Workshop, Asia Pacific Digestive Week, Suntec City Convention Centre, Singapore, 2nd October 2011.
    66. Invited speaker, “Endoscopy in Upper GI Bleeding”, Singapore Health Biomedical Congress, Suntec City Convention Centre, Singapore, 11th to 12th November 2011.
    67. Moderator, Endoscopy Workshop, GI Hep 2012, National University Hospital, 13th July 2012
    68. Chairperson, AZ satellite symposium, GI Hep 2012, 15th July 2012
    69. Chairperson, “Helicobactor Pylori 2012” talk by Prof Nimish Vakil, Regent Hotel, Singapore, 31st August 2012
    70. Chairperson, AZ Enrich symposium, Regent Hotel, 13th October 2012
    71. Speaker, “A few ways out of chronic constipation and bloating”, GP Talk, Paragon, 6th November 2012
    72. Speaker, “NSAIDs and GI Bleeding”, GP talk, Lei Garden CHIJMES, 23rd November 2012
    73. Speaker, “Management of GERD” and “NSAIDs and GI Bleeding”, Shenton Medical Group, Mandarin Hotel, 2nd February 2013
    74. Speaker, “chronic constipation and new options in the management”, Jurong Country Club, 13th March 2013
    75. Speaker, “NSAIDS and GI risks”, Integrated Care Summit2013, Parkroyal on Pickering, 24th August 2013
    76. Speaker, “Practical management of GERD”, Mount Elizabeth Novena Hospital Annual GP Seminar, Mount Elizabeth Novena Hospital, 31st August 2013
    77. Organising Chairman, Mount Elizabeth Novena Hospital Annual GP seminar, Mount Elizabeth Novena Hospital, 31st August 2013
    78. Speaker, public forum “recurrent abdominal pain”, Marine Parade Community Centre, Singapore, 11th January 2014
    79. Speaker, on “Update on management of GERD”, GP talk, Jurong Country Club, 25th March 2014
    80. Invited speaker on “NSAIDS and GI bleeding”, Pfizer Integrated Care Summit 2014, Amara Hotel, 5th April 2014
    81. Speaker, “Update on management of GERD”, GP talk, Peach Garden OCBC Branch, 23rd April 2014
    82. Moderator (Chairman), National Endoscopy Workshop, Tan Tock Seng Hospital, 20th June 2014
    83. Speaker, GERD and Case Studies, GP Talk, First Culinary @ Ang Mo Kio, 25th Sept 2014
    84. Speaker and Co-Chairman, Mount Elizabeth Novena Combined Annual Meeting – Synergy in Action, Mandarin Hotel, 25th October 2014
    85. Invited faculty, case capsule and panel discussion. 5th Bienniel Congress of the Asia Pacific Hepato-Pancreato-Biliary Association, Suntec City, Singapore, 19th March 2015
    86. Speaker, “Gastrointestinal screening and prevention – a useful strategy to achieve good health”, 7th Holistic Wellness Symposium, Chui Huay Lim Club, Singapore, 26th July 2015
    87. Invited faculty, moderator for endoscopy workshop, GIHep 2015, National University Hospital, Singapore, 31st July 2015.
    88. Organising committee member, Mount Elizabeth Novena Hospital Annual Medical Seminar, Singapore, 24th Oct 2015.
    89. Invited faculty and moderator for endoscopy workshop, GI Hep 2016, Changi General Hospital, Singapore 30th June 2016.
    90. Speaker (Case studies in Gastroenterology), Mount Elizabeth Novena Hospital GP symposium, Singapore 3rd Sept 2016.
    91. Chairperson and moderator, endoscopy lecture and live demonstration, GI Hep 2017, Singapore, 7th July 2017.
    92. Organising Co-Chair, Mount Elizabeth Novena Hospital Annual Scientific Meeting, Singapore, August 2017.
    93. Moderator, endoscopy lecture and live demonstration, GI Hep 2018, Singapore, 6th July 2018.
    94. Speaker, GP CME lunch talk (Management of GERD), Singapore, Feb 2019.
    95. Chairperson and moderator, endoscopy lecture and live demonstration, as well as judge for Video Case Presentation, GI Hep 2019, Singapore, 12th July 2019.