title: Melaena due to ectopic pancreas in enteric duplication: a case report.
mesh_terms: D000293:Adolescent; D005260:Female; D006801:Humans; D007583:Jejunum / Q000002:abnormalities*; D008551:Melena / Q000209:etiology*; D010179:Pancreas / Q000002:abnormalities*