Post-operative pain in the assessment of analgesics in man.
D000700:Analgesics / Q000627:therapeutic use*; D001241:Aspirin / Q000627:therapeutic use; D002986:Clinical Trials as Topic; D006801:Humans; D008614:Meperidine / Q000627:therapeutic use; D010146:Pain / Q000188:drug therapy*; D011183:Postoperative Complications
D000700:Analgesics; D008614:Meperidine; D001241:Aspirin