Rogulska, Karolina, Patrycja Piątek, and Konrad Grzeszczak. “The Impact of Pandemic COVID-19 on Cases of Borreliosis Infection in 2020”. Journal of Education, Health and Sport 11, no. 9 (September 16, 2021): 232–237. Accessed June 30, 2024. https://apcz.umk.pl/JEHS/article/view/35245.