Sun, R., . J. . Li, Y. . Fang, Z. Wu, and L. Hou. “Meta-Analysis of the Effect of Taijiquan Exercise Training on the Balance Ability of Middle-Aged and Elderly of Patients With Parkinson’s Disease”. The Journal of the International Society of Chinese Health Practices, vol. 2, no. 1, Oct. 2021, http://ischp.org/ojs/index.php/jischp/article/view/158.