[1] Universitätsklinikum Münster,Department of Neurosurgery
[2] medac GmbH,Pediatric Neurosurgery, Department of Neurosurgery
[3] Neurosurgical Department,Department of Neurosurgery
[4] University Hospital Leipzig,Neurosurgical Department
[5] Justus-Liebig University Giessen,Neurosurgical Department
[6] Complejo Hospitalario Universitario Infanta Cristina,Department of Neurosurgery
[7] A.O.U. Policlinico - Vittorio Emanuele,Department of Neurosurgery
[8] Catania,Department of Neurosurgery
[9] Rigshospitalet,Department of Neurosurgery
[10] University Hospital of Padova,Department of Neurosurgery, Klinikum Grosshadern
[11] Beaumont Hospital,Department of Neurosurgery
[12] Aalborg Universityhospital,Department of Neurosurgery
[13] Ninewells Hospital and Medical School,undefined
[14] Jena University Hospital,undefined
[15] Carlos Haya University Hospital,undefined
[16] Atkinson Morley Wing,undefined
[17] St George’s Hospital,undefined
[18] UHC Zagreb,undefined
[19] Ludwig-Maximilians-University,undefined
[20] Addenbrooke’s Hospital,undefined
[21] General Hospital Nuremberg,undefined