1. Department of Biomedicine and Prevention University of Rome Tor Vergata Rome Italy
2. School of Nursing, Midwifery and Paramedicine, Faculty of Health Sciences Australian Catholic University New South Wales Sydney Australia
3. Health Sciences Department University of Florence Florence Italy
4. Department of Applied Mathematics and Computer Science Technical University of Denmark Kongens Lyngby Denmark
5. Connell School of Nursing Boston College Massachusetts Boston USA
6. Department of Nursing and Obstetrics Wroclaw Medical University Wroclaw Poland
7. School of Nursing University of Pennsylvania Pennsylvania Philadelphia USA