1. Department of Ophthalmology, Clinical Hospital Dubrava, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
2. Centre for Palliative Medicine, Medical Ethics and Communication Skills, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
3. Department of Medical Statistics, Epidemiology and Medical Informatics, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
4. Department of Integrative Psychiatry, Psychiatry Hospital “Sveti Ivan”, 10090 Zagreb, Croatia
5. Health Centre of the Croatian Department of Internal Affairs, 10000 Zagreb, Croatia
6. Department of Family Medicine, Health Centre Zagreb-Centar, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
7. Department of Ophthalmology, General Hospital Dubrovnik, University of Dubrovnik, 20000 Dubrovnik, Croatia