1. Department of Medico‐Surgical Sciences and Biotechnologies, Dermatology Unit “Daniele Innocenzi”, “A. Fiorini” Hospital Sapienza University of Rome Terracina Italy
2. Department of Health Sciences and Public Health Università Cattolica del Sacro Cuore Rome Italy
3. Department of Woman and Child Health and Public Health Fondazione Policlinico Universitario A. Gemelli IRCCS Rome Italy
4. Department of Public Health Sciences and Paediatrics University of Torino Torino Italy