1. Department of Nursing, School of Health Sciences, Hellenic Mediterranean University, 71410 Heraklion, Greece
2. Venizelio General Hospital of Heraklion, 71410 Heraklion, Greece
3. Department of Social Medicine, School of Medicine, University of Crete, 71410 Heraklion, Greece
4. Department of Nursing, School of Health Sciences, University of West Attica, 12243 Athens, Greece