What is the best source of useful data on the treatment of rheumatoid arthritis: clinical trials, clinical observations, or clinical protocols?
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Pincus
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Stein
D001172:Arthritis, Rheumatoid / Q000150:complications / Q000188:drug therapy*; D002985:Clinical Protocols; D006801:Humans; D008727:Methotrexate / Q000627:therapeutic use; D016032:Randomized Controlled Trials as Topic; D012720:Severity of Illness Index; D013997:Time Factors
D008727:Methotrexate