Craddock, Nicole Leigh, Theresa Burgess, and Kim Buchholtz. “Does a Greater Training Load Increase the Risk of Injury and Illness in Ultramarathon Runners? : A Prospective, Descriptive, Longitudinal Design”. South African Journal of Sports Medicine 32, no. 1 (September 30, 2020): 1–6. Accessed November 5, 2024. https://journals.assaf.org.za/index.php/sajsm/article/view/8559.