title: Mishaps with patient-controlled analgesia.
mesh_terms: D000328:Adult; D000368:Aged; D000698:Analgesia; D002585:Cesarean Section; D005283:Fentanyl / Q000009:adverse effects / Q000031:analogs & derivatives; D006622:Hip Prosthesis; D006801:Humans; D007223:Infant; D008614:Meperidine / Q000009:adverse effects; D011182:Postoperative Care; D012131:Respiratory Insufficiency / Q000139:chemically induced*; D012646:Self Administration / Q000009:adverse effects*; D017409:Sufentanil
chemical_list: D008614:Meperidine; D017409:Sufentanil; D005283:Fentanyl