<specialist> A medically qualified specialist in internal medicine who has subspecialised in the diseases of the digestive system, including the liver. ... (16 Dec 1997) ... Found on http://www.encyclo.co.uk/local/20973
Gastroenterologist: A physician who specializes in the diagnosis and treatment of disorders of the gastrointestinal tract, including the esophagus, stomach, small intestine, large intestine, pancreas, liver, gallbladder, and biliary system. Found on http://www.medterms.com/script/main/art.asp?articlekey=3553