Original Research

Postoperative analgesic effect of hydromorphone in patients undergoing single-port video-assisted thoracoscopic surgery: a randomized controlled trial

Bai Y, Sun K, Xing X, Zhang F, Sun N, Gao Y, Zhu L, Yao J, Fan J, Yan M

Journal of Pain Research 2019, 12:1091-1101

Published Date: 27 March 2019