title: A multi-center double-blind crossover comparison study of naproxen and aspirin in patients with rheumatoid arthritis.
mesh_terms: D000284:Administration, Oral; D001172:Arthritis, Rheumatoid / Q000188:drug therapy* / Q000503:physiopathology; D001241:Aspirin / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D001799:Blood Sedimentation; D002986:Clinical Trials as Topic; D004341:Drug Evaluation; D005260:Female; D006801:Humans; D008297:Male; D008738:Methyl Ethers / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use; D008875:Middle Aged; D009281:Naphthalenes / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use; D011422:Propionates / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D013810:Therapeutic Equivalency
chemical_list: D008738:Methyl Ethers; D009281:Naphthalenes; D011422:Propionates; D001241:Aspirin