title: Relationship between blood groups and ulcers: revisiting the pioneer work.
authors.forename: Syeda Tooba
authors.initials: ST
authors.lastname: Najeeb
authors.forename: Ammara
authors.initials: A
authors.lastname: Mushtaq
mesh_terms: D000017:ABO Blood-Group System; D001789:Blood Group Antigens; D006801:Humans; D010437:Peptic Ulcer / Q000097:blood*
chemical_list: D000017:ABO Blood-Group System; D001789:Blood Group Antigens