Pica Alfieri, E., A. Sisti, G. Nisi, C. Brandi, L. Grimaldi, and C. D’Aniello. “A Giant Keratoacanthoma of the Cheek”. Acta Bio Medica Atenei Parmensis, Vol. 90, no. 4, Dec. 2019, pp. 580-2, doi:10.23750/abm.v90i4.7409.