Economic evaluation in rheumatology: a necessity for clinical studies.
D001172:Arthritis, Rheumatoid / Q000175:diagnosis / Q000188:drug therapy*; D002986:Clinical Trials as Topic; D003362:Cost-Benefit Analysis; D005544:Forecasting; D006801:Humans; D012219:Rheumatology / Q000191:economics*; D016896:Treatment Outcome