Authors
Department of Social Medicine, Faculty of Public Health „Prof. Tz. Vodenicharov, DSc”, Medical University – Sofia, Bulgaria
A. Velkova
Department of Social Medicine, Faculty of Public Health „Prof. Tz. Vodenicharov, DSc”, Medical University – Sofia, Bulgaria
L. Georgieva
Department of Social Medicine, Faculty of Public Health „Prof. Tz. Vodenicharov, DSc”, Medical University – Sofia, Bulgaria
E. Georgieva
Department of Social Medicine, Faculty of Public Health „Prof. Tz. Vodenicharov, DSc”, Medical University – Sofia, Bulgaria
N. Hristov
Department of Social Medicine, Faculty of Public Health „Prof. Tz. Vodenicharov, DSc”, Medical University – Sofia, Bulgaria
M. Pravchanska
Department of Social Medicine, Faculty of Public Health „Prof. Tz. Vodenicharov, DSc”, Medical University – Sofia, Bulgaria
