1. PhD student in the Faculty of Medicine, University of Belgrade, Belgrade, Serbia. Also teaches in the secondary school for nursing, Cuprija, Serbia, where Biljana Jeremic is a teacher.
2. Institute of Epidemiology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia.
3. The Institute of Physiology, Faculty of Medicine, University of Pristina, temporarily seated in Kosovska Mitrovica, Serbia.
4. Clinic for Obstetrics and Gynecology, Clinical Center of Serbia, Belgrade, Serbia, and in the Faculty of Medicine, University of Belgrade, Belgrade, Serbia.
5. Department of Epidemiology, Faculty of Medicine, University of Pristina temporarily seated in Kosovska Mitrovica, Mitrovica, Serbia, and the Institute of Public Health of Serbia, “Dr Milan Jovanovic Batut,” Belgrade, Serbia.
6. The Military Medical Academy of the University of Defense, Belgrade, Serbia.