title: Duodenal ulcer: genetic analysis by the phenylthiocarbamide test.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D004381:Duodenal Ulcer / Q000175:diagnosis / Q000235:genetics*; D005260:Female; D005838:Genotype; D006801:Humans; D008297:Male; D008875:Middle Aged; D010670:Phenylthiourea; D013649:Taste; D013652:Taste Threshold
chemical_list: D010670:Phenylthiourea