Viljoen C, Schoeman M, Brandt C, Patricios J, van Rooyen C. Concussion knowledge and attitudes among amateur South African rugby players. SA J Sports Med [Internet]. 2017 Oct. 24 [cited 2024 Dec. 22];29(1):1-6. Available from: https://journals.assaf.org.za/index.php/sajsm/article/view/2993