Doctor Shimon Reif is a highly experienced pediatric gastroenterologist in Israel, and is the Head of the Department of Pediatrics at Hadassah Medical Center. He has extensive experience treating liver and gastrointestinal tract illnesses in children, and is a WHO expert in the development of protocols for diagnosing and treating these conditions. Dr. Reif is the co-author of a novel method of non-malignant disease treatment and has published over 50 research articles on the subject. He is a member of various professional organizations such as the Israeli Pediatric Association, the American Gastroenterological Association, and the European Society for Paediatric Gastroenterology, Hepatology and Nutrition.