Ultrasound-Assisted Thoracic Paravertebral Block Reduces Intraoperative Opioid Requirement and Improves Analgesia after Breast Cancer Surgery: A Randomized, Controlled, Single-Center Trial
L. Pei, Yidong Zhou, Gang Tan, F. Mao, Dongsheng Yang, J. Guan, Yan Lin, Xue-jing Wang, Yan-na Zhang, Xiaohui Zhang, S. Shen, Zhonghuang Xu, Q. Sun, Yuguang Huang
PLoS ONE