Duodenal ulcer. II.
D001789:Blood Group Antigens; D004381:Duodenal Ulcer / Q000601:surgery*; D005260:Female; D005743:Gastrectomy; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D014628:Vagotomy
D001789:Blood Group Antigens