Certificate of Participation Bariatric Training at Swissendos Fribourg, Switzerland, 2004. , -

Certificate in Management and treatment of WMD Mass Casualty Patients, Bangkok, Thailand, 2003. , -

Certificate in Laparoscopic Colorectal Surgery Workshop, Bangkok, 1994. , -

Certificate in Stapled Haemorrhoidopexy and Starr Procedure Workshop, University Kebangsaan Malaysia , -

Certificate Life membership in Asia-Pacific Hernia Society (Recognized as being dedicated to the adv , -

Diploma of Thai Board of General Surgery, 1986 , -

Certificate Surgical Fellow in Laparoscopic and Endoscopic Surgery, University of Innsbruk, Austria, , -

M.D., Faculty of Medicine Ramathibodi Hospital, Mahidol University, 1980. , -

Degree in Medical Science, Mahidol University, 1978. , -

Certificate in International Society of Surgery and Society International De Chirurgie (ISS/SIC), Ba , -