Błaszczyk N, Koźlarek M, Grajek M, Jaskulska S. Health Prevention During the COVID-19 Pandemic Among Adolescents Studying in Poland in Different Types of Secondary Schools. 10.14746/se [Internet]. 2022 Mar. 15 [cited 2024 Oct. 20];(64):89-106. Available from: https://pressto.amu.edu.pl/index.php/se/article/view/40027