Gastroenterology The premier journal in GI.; Clinical Gastroenterology and Hepatology (CGH) The go-to resource in clinical GI. Cellular and Molecular Gastroenterology and Hepatology (CMGH) Impactful digestive biology research. Techniques and Innovations in Gastrointestinal Endoscopy (TIGE) Cutting-edge advances in GI endoscopy. Journals Blog Quick summaries from AGA's journals..