1. Dermatology Clinic University of Trieste, Hospital Maggiore Trieste Italy
2. Department of Clinical and Experimental Medicine, Dermatology University of Messina Messina Italy
3. Department of Dermatology Medical University of Graz Graz Austria
4. Department of Experimental and Clinical Medicine Institute of Dermatology, University of Udine Udine Italy
5. Department of Plastic Reconstructive and Cosmetic Surgery, Dermatology Section Campus Bio‐Medico University Hospital Rome Italy