title: Rheumatoid factors: what do they tell us?
authors.forename: Marianna M
authors.initials: MM
authors.lastname: Newkirk
mesh_terms: D001172:Arthritis, Rheumatoid / Q000276:immunology*; D003141:Communicable Diseases / Q000276:immunology; D003449:Cryoglobulinemia / Q000276:immunology; D004198:Disease Susceptibility / Q000276:immunology; D005260:Female; D006526:Hepatitis C / Q000276:immunology; D006801:Humans; D007109:Immunity; D008297:Male; D012217:Rheumatoid Factor / Q000276:immunology*; D012859:Sjogren's Syndrome / Q000276:immunology
chemical_list: D012217:Rheumatoid Factor