Corresponding Author

Dermatology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy

Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy

Gianluca Nazzaro and Carlo Alberto Maronese equally contributed to this article and both qualify as first authors.

Correspondence

Carlo Alberto Maronese, Dermatology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Pace, 9, 20122 Milan, Italy.

Email: carlo.maronese@unimi.it