2Chen Yajun, Liu Hongwei, Li Qing, et al. Parecoxib sodium different timing of administration of remifentanil anesthesia in patients with a- cute postoperative opioids [ J ]. Chinese Journal of Anesthesiology, 2010, 30 (4) :424-426.
3Zhu Guiqin, Xia Zhu, Zheng Minjiang. ultrasound combined Nerve Stimulator lumbar plexus-sciatic nerve block in the clinical application of lower limb surgery in critically ill patients [ J ]. Journal of Clinical Anesthesiology, 2013,29 ( 11 ) : 1091-1093.
