[Clinical observation of patient-controlled analgesia for postoperative pain: a report of 20 cases].
Xu
H
H
Wang
J B
JB
Lu
Q L
QL
D016058:Analgesia, Patient-Controlled / Q000592:standards*; D006801:Humans; D009730:Nursing Assessment; D010147:Pain Measurement; D010149:Postoperative Pain / Q000188:drug therapy* / Q000451:nursing; D016896:Treatment Outcome