title: [Study on the association of HLA with peptic ulcer].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002681:China; D005006:Ethnicity; D005260:Female; D006680:HLA Antigens / Q000032:analysis*; D015235:HLA-B Antigens; D006801:Humans; D008297:Male; D008875:Middle Aged; D010437:Peptic Ulcer / Q000276:immunology*
chemical_list: D006680:HLA Antigens; D015235:HLA-B Antigens; C035270:HLA-B5 antigen