The relationship of the ABO blood groups to duodenal and gastric ulceration.
D000017:ABO Blood-Group System; D001789:Blood Group Antigens; D004386:Duodenum; D006801:Humans; D010437:Peptic Ulcer / Q000097:blood*; D013276:Stomach Ulcer
D000017:ABO Blood-Group System; D001789:Blood Group Antigens
BLOOD GROUPS; PEPTIC ULCER/blood in