DONG Dalong, ZHANG Mingming, WANG Ankui, GUO Qun, LI Shengfeng, MI Zhihua. Application of ultrasound-guided lumbosacral plexus nerve block combined with laryngeal mask general anesthesia in elderly patients with total hip joint replacement[J]. Journal of Clinical Medicine in Practice, 2019, (2): 64-67,71. DOI: 10.7619/jcmp.201902018