title: Assessment of disease activity in rheumatoid arthritis.
authors.affiliation: Vanderbilt University, Nashville, Tennessee.
authors.forename: N J
authors.initials: NJ
authors.lastname: Olsen
mesh_terms: D001172:Arthritis, Rheumatoid / Q000097:blood / Q000276:immunology / Q000503:physiopathology*; D006801:Humans