1 Department of Dermatology, Second University of Naples, via S. Pansini, 5, 80131 Naples, Italy.
2 Dermatology Unit, Kaplan Medical Center, Rehovot 76100, Israel; The School of Medicine, Hebrew University and Hadassah Medical Center, Jerusalem, Israel.
3 Department of Dermatology, Second University of Naples, via S. Pansini, 5, 80131 Naples, Italy. Electronic address: ada.loschiavo@unina2.it.