1. University of Kragujevac, Faculty of Medical Sciences, Kragujevac + University Clinical Center of Niš, Center for Anesthesiology and Reanimation, Niš
2. Educons University, Faculty of Sports and Psychology, Novi Sad
3. University of Niš, Faculty of Sport and Physical Education, Niš
4. Institute for Treatment and Rehabilitation “Niška Banja”, Niš
5. University of Kragujevac, Faculty of Medical Sciences, Kragujevac