1. Faculty of Social Sciences, Hellenic Open University, Patras, Greece
2. Division of Management, “KAT” General Hospital, Athens, Greece
3. Faculty of Economics and Management, Open University of Cyprus, Nicosia, Cyprus
4. ESGHT, University of the Algarve, Faro, Portugal
5. Centre for Health Studies & Research-CEISUC, University of Coimbra, Coimbra, Portugal