Crandell, D.R., 1971, Postglacial lahars from Mount Rainier volcano, Washington: U.S. Geological Survey Professional Paper 677, p. 1-75.
Training Requirements. To qualify a gastroenterologist, you will have to first complete a 4 year medical school program and receive either an M.D. or a D.O. You will then need to complete a 2 to 3 year residency program, typically in internal medicine.o qualify a gastroenterologist, you will have to first complete a 4 year medical school program and receive either an M.D. or a D.O. You will then need to complete a 2 to 3 year residency program, typically in internal medicine.
A gastroenterologist is a physician who specializes in diseases of the digestive system, also called the gastrointestinal (GI) tract. Gastroenterologists have extensive training in the diagnosis and treatment of conditions that affect the esophagus, stomach, small intestine, large intestine (colon), and biliary system (e.g., liver, pancreas, gallbladder, bile ducts). Gastroenterology is a subspecialty of internal medicine.