[1] Univ Novi Sad, Sch Med, Novi Sad, Serbia
[2] Child & Youth Helath Care Inst Vojvodina, Dev Neurol & Epilepotl, Novi Sad, Serbia
[3] Child & Youth Helath Care Inst Vojvodina, Intens Care & Neonatol, Novi Sad, Serbia
[4] Child & Youth Helath Care Inst Vojvodina, Endocrinol & Metab, Novi Sad, Serbia