1. Faculty of Nursing; National & Kapodistrian University of Athens; Athens; Greece
2. Cardiac Surgery Intensive Care Unit; “Evangelismos” General Hospital of Athens; Athens; Greece
3. Cardiac Intensive Care Unit; “Amalia Fleming” General Hospital of Athens; Athens; Greece
4. Center for Health Services Management and Evaluation; Faculty of Nursing; National & Kapodistrian University of Athens; Athens; Greece
5. Orthopedic Clinic; “Tzanio” General Hospital of Piraeus; Piraeus; Greece
6. Nursing Administration Office; “Agios Georgios” General Hospital of Chania; Chania; Crete; Greece