title: [Distribution of blood groups in patients with hemorrhagic ulcer].
mesh_terms: D000017:ABO Blood-Group System; D001789:Blood Group Antigens; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000209:etiology; D006801:Humans; D008103:Liver Cirrhosis / Q000150:complications; D008297:Male; D010438:Peptic Ulcer Hemorrhage / Q000453:epidemiology*; D012383:Romania; D013274:Stomach Neoplasms / Q000150:complications
chemical_list: D000017:ABO Blood-Group System; D001789:Blood Group Antigens
vernacular_title: Distribuirea grupelor sanguine la bolnavii cu ulcer hemoragic.