1. Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
2. Department of Physical Medicine and Rehabilitation, University Children’s Hospital, 11000 Belgrade, Serbia
3. Laboratory for Strengthening Capacity and Performance of Health System and Workforce for Health Equity, Institute of Social Medicine, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
4. Clinic for Hematology, University Clinical Center of Serbia, 11000 Belgrade, Serbia
5. Department of Radiology, University Children’s Hospital, 11000 Belgrade, Serbia
6. Department of Biomedical Sciences, State University of Novi Pazar, 36300 Novi Pazar, Serbia
7. Department of Obstetrics and Gynecology, University Hospital “Dragisa Misovic”, Heroja Milana Tepica 1, 11000 Belgrade, Serbia
8. Department of Pediatrics and Neonatal Intensive Care, University Children’s Hospital, 11000 Belgrade, Serbia