Jakubowska, E., T. Nowak, P. Łazicka, J. Jasińska, M. Miziniak, and A. Karolak. “The Impact of Using a Protective Mask on the Occurrence of Maskne (mask Acne) During the Covid-19 Pandemic”. Journal of Education, Health and Sport, vol. 38, no. 1, Aug. 2023, pp. 166-84, doi:10.12775/JEHS.2023.38.01.012.