FRYSKA, Zuzanna, KUCIŃSKI, Jakub, KULIK, Kacper, MATUSZ, Krystian, BURCZYK, Rafał, GÓRNA, Natalie, MAZUREK, Ewelina and WOŁEJKO, Adam. Co-occurrence of depression and chronic diseases. Journal of Education, Health and Sport. Online. 25 February 2023. Vol. 13, no. 4, pp. 226-233. [Accessed 28 June 2025]. DOI 10.12775/JEHS.2023.13.04.026.