Citation: | ZHU Yijun, YIN Yong, RAN Guo, BAO Yang, HE Guangbao. Influence of continuous femoral nerve block by ultrasound-guided catheterization with different lengths on postoperative analgesic effect in elderly patients with periarticular fracture of knee joint[J]. Journal of Clinical Medicine in Practice, 2019, (6): 116-119. DOI: 10.7619/jcmp.201906031 |