1 Pediatric Highly Intensive Care Unit, Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan 20122, Italy.
2 Unit of Dermatology, Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan 20122, Italy.
3 Pediatric Highly Intensive Care Unit, Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan 20122, Italy. Electronic address: susanna.esposito@unimi.it.