title: The efficacy of diflunisal in osteoarthritis of the knee: an extended study.
mesh_terms: D002986:Clinical Trials as Topic; D004061:Diflunisal / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D007717:Knee; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000188:drug therapy*; D012459:Salicylates / Q000627:therapeutic use*
chemical_list: D012459:Salicylates; D004061:Diflunisal