title: Prevalence of alpha1-antitrypsin deficiency in patients with gastric or duodenal ulcer.
mesh_terms: D000328:Adult; D004381:Duodenal Ulcer / Q000097:blood / Q000201:enzymology; D006579:Heterozygote; D006801:Humans; D008297:Male; D008661:Metabolism, Inborn Errors / Q000453:epidemiology; D010437:Peptic Ulcer / Q000201:enzymology*; D013276:Stomach Ulcer / Q000097:blood / Q000201:enzymology; D000515:alpha 1-Antitrypsin / Q000097:blood* / Q000378:metabolism
chemical_list: D000515:alpha 1-Antitrypsin