Grajek M, Krupa-Kotara K, Sobczyk K. Fear of COVID-19 among employees of large companies and vaccination against COVID-19 - a cross-sectional study (Silesia, Poland). J Educ Health Sport [Internet]. 2022 Sep. 10 [cited 2025 Jun. 29];12(9):677-84. Available from: https://apcz.umk.pl/JEHS/article/view/39837