title: Two cases of gastrointestinal bleeding.
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007078:Ileal Neoplasms / Q000150:complications*; D007889:Leiomyoma / Q000150:complications*; D008297:Male; D008467:Meckel Diverticulum / Q000150:complications*; D008551:Melena / Q000209:etiology*