1. Department of Neurosurgery, Sisters of Mercy University Hospital Center, Zagreb, Croatia
2. School of Medicine, “J. J. Strossmayer” University, Osijek, Croatia
3. University of Applied Health Sciences, Zagreb, Croatia
4. School of Dental Medicine and Health, “J. J. Strossmayer” University, Osijek, Croatia
5. Semmes Murphey Clinic, Memphis, TN, USA
6. Department of Neurosurgery, University of Tennessee Health Science Center, Memphis, TN, USA
7. Neuroscience Institute, Le Bonheur Children's Hospital, Memphis, TN, USA