1. Section of Hygiene, University Department of Life Sciences and Public Health, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
2. Women, Children and Public Health Sciences Department, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy
3. Health Management, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy
4. Local Health Authority, ASL ROMA 1, 00193 Rome, Italy