1. Clinical Epidemiology Laboratory, Faculty of Nursing, National and Kapodistrian University of Athens, 11527 Athens, Greece
2. Department of Radiology, P. & A. Kyriakou Children’s Hospital, 11527 Athens, Greece
3. Department of Tourism Studies, University of Piraeus, 18534 Piraeus, Greece
4. Center for Health Services Management and Evaluation, Faculty of Nursing, National and Kapodistrian University of Athens, 11527 Athens, Greece
5. Faculty of Midwifery, University of West Attica, West Attica, 12243 Aigaleo, Greece