1 Section of Dermatology, Department of Surgery and Translational Medicine, University of Florence, Ospedale Piero Palagi, Viale Michelangelo 41, 50125 Florence, Italy.
2 SkinCare Physicians, Inc., 1244 Boylston Street, Chestnut Hill, MA, USA ; Yale School of Medicine, New Haven, CT 06510, USA.
3 Hôpital Prive Clairval, 317 boulevard du Redon, 13009 Marseille, France.
4 Dermatology Clinic, Department of Surgery and Translational Medicine, University of Florence, Ospedale Piero Palagi, Viale Michelangelo 41, 50125 Florence, Italy.