Dose Selection of Ropivacaine for Spinal Anesthesia in Elderly Patients with Hip Fracture: An Up-Down Sequential Allocation Study

por Wang, Yu, Zha, Hanning, Fang, Xiang, Shen, Tianjiao, Pan, Kunyun, Zhang, Jianping, He, Keqiang, Wang, Sheng, Hu, Liguo
Publicado 2022