The general surgeon's approach to abdominal pain of obscure origin.
D000005:Abdomen; D001660:Biliary Tract Diseases / Q000601:surgery; D003714:Denervation; D004381:Duodenal Ulcer / Q000601:surgery; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D059408:Pain Management; D010182:Pancreatic Diseases / Q000601:surgery