[Obscure gastrointestinal bleeding].
Torres Durazo
Ernesto
E
Hospital Angeles Mocel, México, D.F.
D002986:Clinical Trials as Topic; D016145:Endoscopy, Digestive System / Q000379:methods*; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis* / Q000209:etiology / Q000628:therapy; D006801:Humans