Gamble, Nathan, and Michal Pruski. “Why Are There No Platypuses at the Olympics?: A Teleological Case for Athletes With Disorders of Sexual Development to Compete Within Their Sex Category”. South African Journal of Sports Medicine, vol. 32, no. 1, June 2020, pp. 1-2, https://doi.org/10.17159/2078-516X/2020/v32i1a7918.