title: Average national payments.
authors.forename: P
authors.initials: P
authors.lastname: Lapuerta
authors.forename: T
authors.initials: T
authors.lastname: Simon
mesh_terms: D001172:Arthritis, Rheumatoid / Q000145:classification / Q000191:economics*; D003625:Data Collection; D003953:Diagnosis-Related Groups / Q000191:economics*; D006760:Hospitalization / Q000191:economics*; D006801:Humans; D007349:Insurance, Health, Reimbursement; D007350:Insurance, Hospitalization; D006278:Medicare; D014481:United States