title: HLA-A3 and -B7 in porphyria cutanea tarda.
mesh_terms: D005787:Gene Frequency; D006680:HLA Antigens / Q000032:analysis* / Q000235:genetics; D006801:Humans; D011164:Porphyrias / Q000235:genetics / Q000276:immunology*; D012871:Skin Diseases / Q000235:genetics / Q000276:immunology*
chemical_list: D006680:HLA Antigens