Lewandowska, A., Ratuszek-Sadowska, D., Hoffman, J., Hoffman, A., Kuczma, M., Ostrowska, I., & Hagner, W. (2017). The frequency of Osgood-Schlatter disease in adolescence training football. Journal of Education, Health and Sport, 7(7), 950–958. Retrieved from https://apcz.umk.pl/JEHS/article/view/4838