Gastrointestinal hemorrhage.
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003110:Colonic Neoplasms / Q000150:complications; D005401:Fissure in Ano / Q000150:complications; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy; D006391:Hemangioma / Q000150:complications; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007417:Intestinal Polyps / Q000150:complications; D007443:Intussusception / Q000150:complications; D008467:Meckel Diverticulum / Q000175:diagnosis