1. Neurosurgery, University of Brescia, Brescia, Italy
2. Neurosurgery, Neurosurgery Clinic, Birgunj, Nepal
3. Neurosurgery, All India Institute of Medical Sciences, New Delhi, India
4. Neurosurgery, Hospital of the University of Pennysylvania, Philadelphia, PA, USA
5. Neurosurgery, Bergmannstrost Hospital Halle, Halle, Germany
6. Neurosurgery, Cleveland Clinic, Weston, FL, USA
7. Department of Biomedical Sciences, Humanitas University, Milan, Italy
8. IRCCS Humanitas Research Hospital, Milan, Italy