Gastroenterology (MeSH heading)'s the branch of medicine whereby the digestive system and its disorders are studied. Etymologically, the name's a combination of three Ancient Greek words gastros (stomach), enteron (intestine), and logos (reason). Diseases affecting the gastrointestinal tract, which includes the organs from mouth to anus, along the alimentary canal, are the focus of this specialty. Physicians practicing in this field of medicine are called gastroenterologists. Important advances… (More on Gastroenterologist)