1. Intensive Care Unit, Limassol General Hospital, Cyprus University of Technology, Limassol, Cyprus
2. School of Health Sciences, Faculty of Health Sciences, Cyprus University of Technology, Limassol, Cyprus
3. Faculty of Nursing, University of Alberta, Edmonton, Canada
4. Intensive Care Unit, Nicosia General Hospital, Nicosia, Cyprus
5. Hellenic Centre for Diseases Control and Prevention, Athens, Greece