1. University of Belgrade, Faculty of Medicine, Institute of Social Medicine, Belgrade, Serbia
2. University Clinical Centre of Serbia, Clinic of Gynecology and Obstetrics, Belgrade, Serbia + University of Belgrade, Faculty of Medicine, Belgrade, Serbia
3. University of Novi Sad, Institute of Oncology of Vojvodina, Clinic for Operative Oncology, Novi Sad, Serbia
4. University of Belgrade, Faculty of Medicine, Institute of Medical Statistics and Informatics, Belgrade, Serbia
5. University Clinical Centre of Serbia, Clinic of Gynecology and Obstetrics, Belgrade, Serbia
6. University of Belgrade, Faculty of Medicine, Belgrade, Serbia + University Clinical Centre of Serbia, Clinic of Endocrinology, Diabetes, and Metabolic Diseases, Belgrade, Serbia
7. University of Belgrade, Faculty of Medicine, Institute of Medical Physiology, Belgrade, Serbia
8. University of Belgrade, Faculty of Medicine, Belgrade, Serbia + Narodni front University Clinic for Gynecology and Obstetrics, Belgrade, Serbia
9. University of Belgrade, Faculty of Medicine, Belgrade, Serbia + University Clinical Centre of Serbia, Division of Cardiology, Belgrade, Serbia