Craddock, N. L., Burgess, T., & Buchholtz, K. (2020). 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(1), 1-6. https://doi.org/10.17159/2078-516X/2020/v32i1a8559