Messina, G., V. C. Francavilla, V. Giustino, O. Mingrino, F. Genovesi, A. Amato, and P. Proia. “Use of Nutritional Supplement to Improve Performance in Professional Soccer Players: A Case Report”. Journal of Human Sport and Exercise, vol. 15, no. 2proc, May 2020, pp. S289-S298, doi:10.14198/jhse.2020.15.Proc2.20.