title: Chronic low back pain: a comparison of diflunisal with paracetamol.
mesh_terms: D000082:Acetaminophen / Q000008:administration & dosage / Q000627:therapeutic use*; D000328:Adult; D000368:Aged; D001416:Back Pain / Q000188:drug therapy*; D002986:Clinical Trials as Topic; D004061:Diflunisal / Q000008:administration & dosage / Q000627:therapeutic use*; D004311:Double-Blind Method; D006801:Humans; D008875:Middle Aged; D011897:Random Allocation; D012459:Salicylates / Q000627:therapeutic use*
chemical_list: D012459:Salicylates; D000082:Acetaminophen; D004061:Diflunisal