Relationship between the COVID-19 pandemic and the level of stress among college students in Poland. - Krzystyniak, Ewa; Nawrot, Piotr; Jonik, Szymon; Borowiak, Ewa; Krajewska, Natalia; Maksym, Jakub; Studzińska, Anna; Mazurek, Tomasz (Discover Public Health, 2025)