1. Department of Pain Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
2. Department of Psychology, University of Toronto, Toronto, Ontario, Canada
3. Premed track majoring in Biology, Baylor University, Waco, Texas, USA
4. Department of Human Anatomy, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan Province, China
5. Department of Neurology, Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China