1. Center for Endocrine Surgery, Clinical Center of Serbia, Belgrade, Serbia
2. School of Medicine, University of Belgrade, Belgrade, Serbia
3. Surgery Clinic, Clinical Centre “Dr. Dragisa Misovic – Dedinje”, Belgrade, Serbia
4. School of Medicine, Institute for Pathological Anatomy, University of Belgrade, Belgrade, Serbia
5. Department of Nephrology, Urological Clinic, Clinical Centre “Dr. Dragisa Misovic – Dedinje”, Belgrade, Serbia