Corrigendum: Melanoma in Adolescents and Young Adults (AYA): Evaluation of the Characteristics, Treatment Strategies, and Prognostic Factors in a Monocentric Retrospective Study - Del Fiore, Paolo; Russo, Irene; Ferrazzi, Beatrice; Monico, Alessandro Dal; Cavallin, Francesco; Filoni, Angela; Tropea, Saveria; Russano, Francesco; Di Prata, Claudia; Buja, Alessandra; Collodetto, Alessandra; Spina, Romina; et al. (Frontiers in Oncology, 2021)