1. School of Medicine, University of Zagreb, Zagreb, Croatia / Institute for Eye Diseases and Disorders, Clinical Hospital Dubrava, Zagreb, Hrvatska
2. The Faculty of Economics and Business, University of Zagreb, Zagreb, Croatia
3. The Faculty of Economics, University of Montenegro, Podgorica, Montenegro
4. Department of Historical and Geographic Sciences and the Ancient World, School of Human and Social Sciences and Cultural Heritage, University of Padova, Padova, Italy