LI Xiaojing, JI Xiaoli, QIAN Tao, ZHU Yabin, SUN Canlin. Preemptive analgesic effect of different doses of dezocine on stress response in recovery period of general anesthesia in elderly patients[J]. Journal of Clinical Medicine in Practice, 2016, (7): 75-78. DOI: 10.7619/jcmp.201607022