Study of the half effective dose of sufentanil combined with dexmedetomidine for sedation by contrast-enhanced transesophageal echocardiography
PENG Yu-chuan, ZHANG Shi-hao, GU Jun-feng, XIAO Yun
Journal of Hebei Medical University . 2022, (4): 460 -465 .  DOI: 10.3969/j.issn.1007-3205.2022.04.018