title: How many types of patients meet classification criteria for rheumatoid arthritis?
authors.forename: T
authors.initials: T
authors.lastname: Pincus
authors.forename: L F
authors.initials: LF
authors.lastname: Callahan
mesh_terms: D001172:Arthritis, Rheumatoid / Q000145:classification* / Q000628:therapy; D015415:Biomarkers; D018450:Disease Progression; D006801:Humans; D016896:Treatment Outcome
chemical_list: D015415:Biomarkers