1. Spine Surgery Unit, Department of Neurosurgery, Sheba Medical Center, Ramat-Gan, Israel;
2. Talpiot Medical Leadership Program, Sheba Medical Center, Ramat-Gan, Israel;
3. Sackler Medical School, Tel-Aviv University, Tel-Aviv, Israel;
4. Department of Neurosurgery, Sheba Medical Center, Ramat-Gan, Israel