Chang, Chia-Ming, Li-Wei Liu, Huey-Hong Hsieh, and Wui-Chiu Mu. 2018. “Influence of Sports Participation, Knowledge, Attitude and Behavior Toward Vision Care on Vision Performance of Elementary School Students: A Comparison of Athletes and Non-Athletes”. Pakistan Journal of Nutrition 17 (5): 242–247. https://doi.org/10.3923/pjn.2018.242.247.