Low-Dose Esketamine as an Adjuvant to Propofol Sedation for Same-Visit Bidirectional Endoscopy: Protocol for a Multicenter Randomized Controlled Trial
Nan Song, Xisheng Shan, Yi Yang, Zhong Zheng, Wen-Cheng Shi, Xiao-yan Yang, Yang Li, A. Tan, Hong Liu, Ke Peng, Fu-hai Ji
International Journal of General Medicine