1. Military Medical Academy, Clinic for Endocrinology, Belgrade + University of Defence, Faculty of Medicine of the Military Medical Academy, Belgrade
2. Military Medical Academy, Clinic for Endocrinology, Belgrade
3. Military Medical Academy, Clinic for Urology, Belgrade
4. University of Defence, Faculty of Medicine of the Military Medical Academy, Belgrade + Military Medical Academy, Clinic for Urology, Belgrade
5. Military Medical Academy, Institute of Pathology, Belgrade