Pathogenesis of crohn's disease ,The differential diagnosis of crohn's diseases and ulcerative colitis, New imaging teehnigues, Medical therapy of active ,Nutrition and nutritional therapy, Adolescents, Controversies, Place of laparoscopic surgery, Adjuvant post operative therapy
General approach to gastrointestinal disease, Esophageal disease, Disease of the stomach and small intestine, Disease of the colon and rectum, Disease of the pancheas, Disease of the liver and biliary system