AUTHOR=Chen Ying , He Junchen , Huang Rong , Pan Zhuoqi , Zhong Min , Zhang Wenxuan TITLE=Effects of the subanesthetic dose of esketamine on postoperative sleep quality in patients undergoing modified radical mastectomy: a randomized, double-blind controlled trial JOURNAL=Frontiers in Medicine VOLUME=Volume 12 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2025.1552934 DOI=10.3389/fmed.2025.1552934 ISSN=2296-858X