title: Hemorrhage of the lower gastrointestinal tract: a review.
mesh_terms: D000328:Adult; D000368:Aged; D002675:Child, Preschool; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis* / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged