Comparison of the safety of remimazolam and propofol during general anesthesia in elderly patients: systematic review and meta-analysis - Liu, Xianchun; Zhang, Longyi; Zhao, Li; Zhou, Xuelei; Mao, Wei; Chen, Linlin; Zhu, Hongyu; Xie, Ying; Li, Linji (Frontiers in Medicine, 2025)