Effects of patient-controlled analgesia with hydromorphone or sufentanil on postoperative pulmonary complications in patients undergoing thoracic surgery: a quasi-experimental study.
Guangming YanJie ChenGuiying YangGuangyou DuanZhiyong DuZubin YuJing PengWei LiaoHong LiPublished in: BMC anesthesiology (2018)
Randomized Controlled Trials ChiCTR1800014282c . Registered 3 January 2018.