Add-on or step-up trials in rheumatoid arthritis: comment on the article by Boers.
Pincus
Theodore
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D018501:Antirheumatic Agents / Q000627:therapeutic use*; D001172:Arthritis, Rheumatoid / Q000188:drug therapy*; D002986:Clinical Trials as Topic / Q000379:methods*; D006801:Humans
D018501:Antirheumatic Agents