Bryliński, Łukasz, A. Bura, P. Duda, P. Drożak, K. Augustowska, and M. Drożak. “Predictors Associated With Studies and Lifestyle and Subjective Feeling of Depressive Symptoms Among Polish Medical Students”. Journal of Education, Health and Sport, vol. 10, no. 9, Sept. 2020, pp. 29-47, doi:10.12775/JEHS.2020.10.09.004.