title: [Melena of allergic origin].
mesh_terms: D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006470:Hemorrhage; D006801:Humans; D008499:Medical Records; D008551:Melena / Q000209:etiology*; D014581:Urticaria
keywords: HEMORRHAGE, GASTROINTESTINAL/etiology; MELENA/etiology; URTICARIA/case reports