Janse Van Rensburg, Dina Christina, Lervasen Pillay, Sharief Hendricks, and Jessica Hamuy Blanco. “Year of the Face Mask: Do’s and don’ts During Exercise”. South African Journal of Sports Medicine 32, no. 1 (July 29, 2020): 1–2. Accessed June 21, 2024. https://journals.assaf.org.za/index.php/sajsm/article/view/8615.