title: Strong correlation in the serum levels of IgM rheumatoid factor and IgM anti-Chlamydia pneumoniae antibody.
authors.forename: M
authors.initials: M
authors.lastname: Iwamoto
authors.forename: S
authors.initials: S
authors.lastname: Onishi
authors.forename: S
authors.initials: S
authors.lastname: Minota
mesh_terms: D001172:Arthritis, Rheumatoid / Q000097:blood / Q000276:immunology; D016993:Chlamydophila pneumoniae / Q000276:immunology*; D006801:Humans; D007075:Immunoglobulin M / Q000097:blood* / Q000276:immunology; D012217:Rheumatoid Factor / Q000097:blood* / Q000276:immunology
chemical_list: D007075:Immunoglobulin M; D012217:Rheumatoid Factor