title: Is measurement of rheumatoid factor isotypes clinically useful?
authors.affiliation: Department of Immunology, National University Hospital, Landspitalinn, Reykjavik, Iceland.
authors.forename: T
authors.initials: T
authors.lastname: Jónsson
authors.forename: H
authors.initials: H
authors.lastname: Valdimarsson
mesh_terms: D001172:Arthritis, Rheumatoid / Q000276:immunology*; D006684:HLA-DR Antigens / Q000032:analysis; D006801:Humans; D007070:Immunoglobulin A / Q000032:analysis; D007132:Immunoglobulin Isotypes / Q000032:analysis*; D007075:Immunoglobulin M / Q000032:analysis; D011379:Prognosis; D012217:Rheumatoid Factor / Q000032:analysis*
chemical_list: D006684:HLA-DR Antigens; D007070:Immunoglobulin A; D007132:Immunoglobulin Isotypes; D007075:Immunoglobulin M; D012217:Rheumatoid Factor