Bérdi, Márk, Ferenc Köteles, Attila Szabó, and György Bárdos. “Placebo Effects in Sport and Exercise: A Meta-Analysis”. European Journal of Mental Health 6, no. 2 (December 9, 2011), 196–212. Accessed November 21, 2024. https://ejmh.semmelweis.hu/index.php/ejmh/article/view/75.