Lower gastrointestinal bleeding of unknown origin: tricks of the trade.
Greer
S E
SE
Department of Surgery, Dartmouth Hitchcock Medical Center, Lebanon, NH 03756, USA.
Gupta
R
R
D000465:Algorithms; D003113:Colonoscopy; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000209:etiology; D006801:Humans; D007441:Intubation, Gastrointestinal; D011877:Radionuclide Imaging