Comparison of the effects of ketamine via nebulization versus different pharmacological approaches in pediatric sedation: a systematic review and meta-analysis of randomized controlled trials. - Liu, Xiao; Lang, Bingchen; Zeng, Linan; Huang, Liang; Chen, Shouming; Jia, Zhi-Jun; Cheng, Guo; Yu, Qin; Zhang, Lingli (BMC Anesthesiology, 2023)