title: Rheumatoid factors and rheumatoid arthritis.
authors.affiliation: National Public Health Institute, Helsinki, Finland.
authors.forename: K
authors.initials: K
authors.lastname: Aho
authors.forename: T
authors.initials: T
authors.lastname: Tuomi
authors.forename: M
authors.initials: M
authors.lastname: Heliövaara
authors.forename: T
authors.initials: T
authors.lastname: Palosuo
mesh_terms: D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000097:blood / Q000276:immunology*; D006801:Humans; D008875:Middle Aged; D012217:Rheumatoid Factor / Q000096:biosynthesis / Q000276:immunology*
chemical_list: D012217:Rheumatoid Factor