title: Rheumatoid arthritis: current concepts.
mesh_terms: D001172:Arthritis, Rheumatoid / Q000209:etiology* / Q000276:immunology; D001424:Bacterial Infections / Q000150:complications; D005260:Female; D005802:Genes, MHC Class II; D006680:HLA Antigens; D004854:Herpesvirus 4, Human; D000949:Histocompatibility Antigens Class II; D006801:Humans; D007105:Immune Complex Diseases / Q000209:etiology; D008222:Lymphokines / Q000502:physiology; D008297:Male; D012217:Rheumatoid Factor / Q000502:physiology; D006377:T-Lymphocytes, Helper-Inducer; D050378:T-Lymphocytes, Regulatory; D014777:Virus Diseases / Q000150:complications
chemical_list: D006680:HLA Antigens; D000949:Histocompatibility Antigens Class II; D008222:Lymphokines; D012217:Rheumatoid Factor