title: Azathioprine: a controlled, double-blind trial in rheumatoid arthritis.
mesh_terms: D001172:Arthritis, Rheumatoid / Q000188:drug therapy*; D001379:Azathioprine / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D006801:Humans; D008875:Middle Aged; D010919:Placebos; D011239:Prednisolone / Q000627:therapeutic use
chemical_list: D010919:Placebos; D011239:Prednisolone; D001379:Azathioprine