title: Effects of extradural sufentanil and morphine on ventilation.
authors.forename: G B
authors.initials: GB
authors.lastname: Drummond
mesh_terms: D015360:Analgesia, Epidural; D006801:Humans; D009020:Morphine / Q000008:administration & dosage*; D015656:Respiratory Mechanics; D012680:Sensitivity and Specificity; D012891:Sleep Apnea Syndromes / Q000175:diagnosis*; D017409:Sufentanil / Q000008:administration & dosage*
chemical_list: D009020:Morphine; D017409:Sufentanil