1. Department of Biomedicine and Prevention, University of Rome Tor Vergata, 00133 Rome, Italy
2. Department of Public Health, Experimental and Forensic Medicine, Section of Hygiene, University of Pavia, 27100 Pavia, Italy
3. Department of Women’s and Children’s Health, Faculty of Life Sciences and Medicine, King’s College London, London WC2R 2LS, UK
4. Department of Medical Sciences, University of Ferrara, 44121 Ferrara, Italy
5. Health Professions Research and Development Unit, IRCCS Policlinico San Donato, San Donato Milanese, 20097 Milano, Italy
6. Department of Biomedical Sciences for Health, University of Milan, 20133 Milan, Italy
7. Department of Midwifery and Radiography, School of Health and Psychological Sciences, University of London, London EC1V 0HB, UK
8. Department of Clinical-Surgical, Diagnostic and Pediatric Sciences, University of Pavia, 27100 Pavia, Italy