Pekar, J., J. Skolarczyk, P. Pekar, and B. Nieradko-Iwanicka. “The Use of Pictures and Videos Showing Dermal and Mucosal Symptoms by Patients in Medical Practice”. Journal of Education, Health and Sport, vol. 8, no. 6, May 2018, pp. 20-25, https://apcz.umk.pl/JEHS/article/view/5502.