1. Department of Public Health, Experimental and Forensic Medicine, Section of Hygiene, University of Pavia, Pavia, Italy
2. Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
3. Department of Clinical–Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
4. Department of Women’s and Children’s Health, Faculty of Life Sciences and Medicine, King’s College London, London, UK
5. Royal College of Midwives, London, UK
6. Department of Midwifery and Radiography, School of Health and Psychological Sciences, City, University of London, London, UK
7. Health Professions Research and Development Unit, IRCCS Policlinico San Donato, San Donato Milanese, Milano, Italy
8. Department of Biomedical Sciences for Health, University of Milan, Milan, Italy