1. Department of Neurosurgery, Radboud University Medical Centre, Nijmegen, The Netherlands;
2. Department of Neurosurgery, Henrich-Heine-University Düsseldorf, Germany;
3. Department of Neurology and Neurosurgery, UMC Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands;
4. Department of Neurology, Maastricht University Medical Center, Maastricht, The Netherlands;
5. Department for Health Evidence, Radboud University Medical Centre, Nijmegen, The Netherlands;
6. Department of Neurosurgery, Maastricht University Medical Center, Maastricht, The Netherlands;
7. Department of Neurosurgery, Universitätsmedizin Mannheim, Germany;
8. Department of Neurosurgery, Kepler University Hospital, Linz, Austria;
9. Department of Neurosurgery, Mount Sinai Health System, New York, New York;
10. Department of Neurosurgery, University of Texas Southwestern, Dallas, Texas;
11. Department of Neurosurgery, Antwerp University Hospital, Edegem, Belgium;
12. Department of Neurology, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Centre, Nijmegen, The Netherlands; and
13. Department of Neurosurgery, University Hospital Zurich and Clinical Neuroscience Center, Zurich, Switzerland