Williams, H., Moxley, K., Macharia, M., Kidd, M., & Jordaan, G. Eating disorders and substance use at a South African tertiary hospital over a 21-year period. The South African Journal of Psychiatry : SAJP : The Journal of the Society of Psychiatrists of South Africa, 26, 1421. https://doi.org/10.4102/sajpsychiatry.v26i0.1421 (Original work published 2020)