He , Liang, Jun-Mei Xu, Tao He, Lei Liu, and Rong Zhu. “Dexmedetomidine Pretreatment Alleviates Propofol Injection Pain”. Upsala Journal of Medical Sciences 119, no. 4 (October 12, 2014): 338–342. Accessed April 22, 2026. https://ujms.net/index.php/ujms/article/view/5870.