1. Faculty of Medicine, University Fehmi Agani, 50000 Gjakove, Kosovo
2. National Institute of Public Health, 10000 Pristina, Kosovo
3. Department of Environmental Health, ZPH, Medical University of Vienna, 1090 Wien, Austria
4. Department of Hygiene, Medical University of Karakalpakstan, Nukus 230100, Uzbekistan
5. UBT College, 10000 Pristina, Kosovo