AUTHOR=Wang Qi , Zhao Yuanyuan , Ling Bin , Chen Xiangxiang , Xie Yayun , Zhao Haibo , Zhang Jiangang , Wang Wei , Lv Jie 

TITLE=Efficacy and safety of hydromorphone for postoperative patient-controlled intravenous analgesia for patients undergoing orthopedic surgery: a randomized, double-blinded controlled trial

JOURNAL=Frontiers in Medicine

VOLUME=Volume 12 - 2025

YEAR=2025

URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2025.1567328

DOI=10.3389/fmed.2025.1567328

ISSN=2296-858X