Safety research of low-dose hypobaric bupivacaine for spinal anesthesia for hip surgery in elderly patients
WANG Chun-xiao, LI Zhi-hua, XU Guan-jie, ZHANG Xiu-ning, QIE Xiao-juan, HAO Li-jing
Journal of Hebei Medical University . 2022, (9): 1079 -1084 .  DOI: 10.3969/j.issn.1007-3205.2022.09.018