title: [Stastical contribution on relations existing between blood groups, cancer of the stomach and gastroduodenal ulcer].
mesh_terms: D001699:Biometry; D001789:Blood Group Antigens / Q000706:statistics & numerical data*; D006801:Humans; D009369:Neoplasms; D010437:Peptic Ulcer / Q000097:blood*; D013274:Stomach Neoplasms / Q000097:blood*
chemical_list: D001789:Blood Group Antigens
keywords: BLOOD GROUPS/statistics; PEPTIC ULCER/blood; STOMACH NEOPLASMS/blood