1. School of Nursing; University of Udine; Udine Italy
2. Department of Medicine and Science of Aging; ‘G. d'Annunzio’ University of Chieti; Italy
3. School of Nursing and Midwifery Sciences; Università Politecnica delle Marche; Ancona Italy
4. School of Nursing; Università Politecnica delle Marche; Ascoli Piceno Italy
5. Department of Nursing Science; University of Turku; Turku Finland
6. SL 02; Abruzzo Italy