title: Opiate analgesia without respiratory depression: a study in postoperative patients.
mesh_terms: D000768:Anesthesia, General; D004315:Doxapram / Q000008:administration & dosage*; D006801:Humans; D009020:Morphine; D009270:Naloxone; D010919:Placebos; D011183:Postoperative Complications / Q000517:prevention & control*; D012119:Respiration
chemical_list: D010919:Placebos; D009270:Naloxone; D009020:Morphine; D004315:Doxapram