E. Jakubowska, 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”, J Educ Health Sport, vol. 38, no. 1, pp. 166–184, Aug. 2023.