1. Institute of Cardiovascular Diseases of Vojvodina, Sremska Kamenica + University of Novi Sad, Faculty of Medicine, Novi Sad
2. Institute of Cardiovascular Diseases of Vojvodina, Sremska Kamenica + University of Novi Sad, Faculty of Medicine, Department of Anesthesiology and Perioperative Medicine, Novi Sad
3. University of Novi Sad, Faculty of Medicine, Novi Sad + University of Novi Sad, Faculty of Medicine, Department of Physiology, Novi Sad
4. University of Novi Sad, Faculty of Medicine, Novi Sad