title: Postoperative analgesia and lung function: a comparison of narcotic analgesic regimens.
mesh_terms: D000328:Adult; D000698:Analgesia; D002245:Carbon Dioxide / Q000097:blood; D006801:Humans; D007273:Injections, Intramuscular; D007275:Injections, Intravenous; D008297:Male; D008875:Middle Aged; D009020:Morphine / Q000008:administration & dosage*; D010100:Oxygen / Q000097:blood; D010423:Pentazocine / Q000008:administration & dosage*; D010947:Plants, Toxic; D011182:Postoperative Care; D011650:Pulmonary Alveoli / Q000032:analysis; D012907:Smoking; D013147:Spirometry; D013997:Time Factors; D014026:Nicotiana; D014628:Vagotomy; D014797:Vital Capacity
chemical_list: D002245:Carbon Dioxide; D009020:Morphine; D010423:Pentazocine; D010100:Oxygen