1. United Nation University–International Institute of Global Health (UNU-IIGH), Kuala Lumpur, Malaysia; International Center for Casemix and Clinical Coding (ITCC), Kuala Lumpur, Malaysia
2. Gazi University, Ankara, Turkey
3. International Center for Casemix and Clinical Coding (ITCC), Kuala Lumpur, Malaysia
4. Izmir University of Economics, Izmir, Turkey