[1] Univ Belgrade, Inst Epidemiol, Fac Med, Belgrade 11000, Serbia
[2] Univ Belgrade, Fac Med, Belgrade 11000, Serbia
[3] Dedinje Cardiovasc Inst, Dept Vasc Surg, Belgrade, Serbia
[4] Univ Belgrade, Inst Med Stat & Informat, Fac Med, Belgrade 11000, Serbia
[5] Univ Belgrade, Inst Hyg & Med Ecol, Fac Med, Belgrade 11000, Serbia