title: RELIEF OF POST-OPERATIVE PAIN: COMPARISON OF A 25 PER CENT NITROUS-OXIDE AND OXYGEN MIXTURE WITH MORPHINE.
mesh_terms: D000700:Analgesics; D018712:Analgesics, Non-Narcotic; D058633:Antipyretics; D006801:Humans; D009020:Morphine; D009609:Nitrous Oxide; D010100:Oxygen; D010102:Oxygen Inhalation Therapy; D010146:Pain; D010149:Postoperative Pain; D011182:Postoperative Care; D012129:Respiratory Function Tests; D013223:Statistics as Topic
chemical_list: D000700:Analgesics; D018712:Analgesics, Non-Narcotic; D058633:Antipyretics; D009020:Morphine; D009609:Nitrous Oxide; D010100:Oxygen
keywords: ANALGESICS AND ANTIPYRETICS; MORPHINE; NITROUS OXIDE; OXYGEN INHALATION THERAPY; PAIN; POSTOPERATIVE CARE; RESPIRATORY FUNCTION TESTS; STATISTICS