Institution: | 1.Institute of Pathology, School of Medicine, University of Belgrade, Dr Subotica 1A, Belgrade, Serbia ;2.Clinic of Obstetrics and Gynecology, Clinical Center of Serbia, School of Medicine, University of Belgrade, Visegradska 26, Belgrade, Serbia ;3.Institute of Epidemiology, School of Medicine, University of Belgrade, Visegradska 26A, Belgrade, Serbia ; |