1. Department of Nursing, University of La Rioja , Logroño , Spain
2. Biomedicine and Prevention Department, University of Rome ‘Tor Vergata’ , Via Montpellier, 1 , 00133 Rome, Italy
3. Memorial University of Newfoundland Faculty of Nursing, , Newfoundland and Labrador , Canada
4. Cardiology Department, Maastricht University Medical Centre , Maastricht , The Netherlands
5. Research Unit Nursing Science, Campus Bio-Medico di Roma University , Rome , Italy