1. University of Belgrade, Faculty of Medicine, Belgrade, Serbia + Clinical Center of Serbia, Clinic for Cardiology, Belgrade, Serbia
2. University of Belgrade, Faculty of Medicine, Belgrade, Serbia + Serbian Academy of Science and Arts, Committee on Cardiovascular pathology, Belgrade, Serbia
3. Clinical Center of Serbia, Clinic for Cardiology, Belgrade, Serbia
4. University of Belgrade, Faculty of Medicine, Belgrade, Serbia + Zemun Clinical Hospital Centre, Belgrade, Serbia
5. University of Belgrade, Faculty of Medicine, Belgrade, Serbia + Banjica Institute for orthopedic surgery, Belgrade, Serbia