1. Clinic for Gynecology and Obstetrics “Narodni front”; Belgrade Serbia
2. Clinical Center of Serbia; Clinic for Gynecology and Obstetrics; Belgrade Serbia
3. Laboratory for Cellular Physiology; Institute of Medical Physiology; Belgrade Serbia
4. Clinical Hospital Center Zemun; Belgrade Serbia
5. Clinical Center “Dr DragisaMisovic-Dedinje”; Belgrade Serbia
6. Laboratory of Radiobiology and Molecular Genetics; Institute Vinca; University of Belgrade School of Medicine; Belgrade Serbia