Nieradko-Iwanicka, B. .; Dąbrowska, K. .; Chodun, W. . The PH of Soaps, Skin Care Products and Cosmetics Used in the Period of COVID-19 Pandemic. Pol J Public Health 2021, 130, 57-60. https://doi.org/10.2478/pjph-2020-0013.