Authors
K. Zaykova
Faculty of Medicine, Medical University – Varna, Bulgaria
S. P. Nikolova
Department of Social Medicine and Healthcare Organization, Faculty of Public Health, Medical University – Varna, Bulgaria
R. Pancheva
Department of Hygiene and Epidemiology, Faculty of Public Health, Medical University – Varna, Bulgaria
A. Serbezova
assena.stoimenova@foz.mu-sofia.bg
Department of Health Policy and Management, Faculty of Public Health “Prof. Tsekomir Vodenicharov, MD, DSc”, Medical University – Sofia, Bulgaria