Shao, Zhufeng, and Qipeng Song. “Long-Term Tai Chi Practitioners Have Superior Visuospatial Ability and Postural Stability During Standing With Upper Body Movements”. The Journal of the International Society of Chinese Health Practices (October 29, 2021). Accessed January 18, 2022. http://ischp.org/ojs/index.php/jischp/article/view/169.