title: Familial rheumatoid arthritis and HLA-DRw4.
mesh_terms: D000328:Adult; D001172:Arthritis, Rheumatoid / Q000209:etiology / Q000235:genetics*; D005260:Female; D006680:HLA Antigens / Q000235:genetics*; D006801:Humans; D008297:Male
chemical_list: D006680:HLA Antigens