1. Military Hospital, Novi Sad
2. Institute for Health Protection of Children and Youth of Vojvodina, Novi Sad
3. University of Novi Sad, Medical Faculty, Novi Sad
4. University of Novi Sad, Medical Faculty, Novi Sad + Institute of Cardiovascular Diseases of Vojvodina, Sremska Kamenica
5. Institute of Cardiovascular Diseases of Vojvodina, Sremska Kamenica + Faculty of Pharmacy, Novi Sad