1. Department of Health Policy and Management, School of Public Health, Mongolian National University of Medical Sciences, Ulaanbaatar, Mongolia
2. Faculty of Economy and Business Sciences (Facoltà di Scienze Economiche e Aziendali), University of Sannio, (Università degli Studi del Sannio), Benevento, Italy
3. The Institute of Public Health and Clinical Nutrition, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
4. Department of Business Management, Ulaanbaatar University, Ulaanbaatar, Mongolia
5. Faculty of Economy and Business Sciences, University of Sannio, Benevento, Italy