ABO blood-groups and gastric acidity.
D000017:ABO Blood-Group System; D001789:Blood Group Antigens; D005750:Gastric Juice; D010437:Peptic Ulcer / Q000097:blood*; D013274:Stomach Neoplasms
D000017:ABO Blood-Group System; D001789:Blood Group Antigens
BLOOD GROUPS; GASTRIC JUICE; PEPTIC ULCER/blood in; STOMACH/neoplasms