POPULATION BURDEN AND DEMOGRAPHIC PREDICTORS OF POSTTRAUMATIC STRESS DISORDER (PTSD) IN BULGARIA Journal title: Българско списание за обществено здраве (Bulgarian Journal of Public Health) Authors: Hristo Hinkov, Michail Okoliyski, Zahari Zarkov, Vladimir Nakov, Rumyana Dinolova, Irina Georgieva,... Subject(s):