1. Department of Emergency Medicine, University of Novi Sad Medical Faculty, Novi Sad, Serbia
2. Department of Anesthesiology, Institute for Children and Youth Health Care of Vojvodina, Novi Sad, Serbia
3. Department of Biochemistry, University of Novi Sad Medical Faculty, Novi Sad, Serbia
4. Department of Laboratory Diagnostics, Institute for Children and Youth Health Care of Vojvodina, Novi Sad, Serbia
5. Department of Surgery, University of Novi Sad Medical Faculty, Novi Sad, Serbia
6. Department of Surgery, Institute for Children and Youth Health Care of Vojvodina, Novi Sad, Serbia
7. Obstetrics and Gynecology Clinic, Clinical Center of Vojvodina, Novi Sad, Serbia