1. Clinical Center of Serbia, Emergency Center, Belgrade
2. Clinical Center of Serbia, Clinic for Thoracic Surgery, Belgrade
3. Clinical Center of Serbia, Emergency Center, Belgrade + Faculty of Medicine, Belgrade
4. Clinical Center of Serbia, Service of Histopathology, Belgrade
5. Faculty of Medicine, Belgrade + Clinical Center of Serbia, Clinic for Physical Medicine and Rehabilitation, Belgrade
6. Faculty of Medicine, Belgrade + University Children’s Hospital, Physical Medicine and Rehabilitation Department, Belgrade