1. Department of Oncology, University of Torino, Candiolo, Torino, Italy
2. Department of Medical Sciences, Section of Dermatology, University of Turin, Torino, Italy
3. Division of Medical Oncology, Experimental Cell Therapy, Candiolo Cancer Institute, Candiolo, Torino, Italy
4. School of Medicine, Sigmund Freud University, Vienna, Austria
5. Department of Dermatology, The Rudolfstiftung Hospital, Academic Teaching Hospital, Medical University Vienna, Vienna, Austria