Gastroenterology is the branch of medicine which deals with the digestive system and its disorders. The focus of this speciality is the diseases that affect the gastrointestinal tract, which includes the organs from mouth to anus as well as alimentary canal. The common diseases that are handled under this medical speciality include colorectal cancer, gastroesophageal reflux disease (GERD), malignant tumours, gastric and duodenal ulcers, inflammatory...