Influence of the secretor and Lewis genes on susceptibility to duodenal ulcer.
D001692:Biological Transport; D001789:Blood Group Antigens; D004198:Disease Susceptibility; D004381:Duodenal Ulcer; D006801:Humans; D007857:Leadership; D010437:Peptic Ulcer / Q000276:immunology*
D001789:Blood Group Antigens
BLOOD GROUPS; PEPTIC ULCER/immunology