title: [Evaluation of analgesic effect of drugs in postoperative pain].
mesh_terms: D000700:Analgesics / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D005069:Evaluation Studies as Topic; D005163:Factor Analysis, Statistical; D006801:Humans; D009020:Morphine / Q000627:therapeutic use; D059408:Pain Management; D010423:Pentazocine / Q000627:therapeutic use; D010919:Placebos; D011183:Postoperative Complications
chemical_list: D000700:Analgesics; D010919:Placebos; D009020:Morphine; D010423:Pentazocine