Specialized Board of Internal Diseases and Subspecialized Board of Gastrointestinal and Liver Diseases and Endoscopy from Tehran University of Medical Sciences. A member of the Iranian Gastroenterology and Liver Association since 1988, a member of the American Gastroenterology Association since 1989, and a member of the Canadian Medical System since 1996. Has numerous scientific articles published in the world's most prestigious medical journals. https://dr-barazandeh.com See more...