1. Department of Neurological Surgery, University of Virginia Health System, Charlottesville, Virginia;
2. Department of Surgery, Division of Neurosurgery, Université de Sherbrooke, Centre de Recherche du CHUS, Sherbrooke, Quebec, Canada;
3. Department of Neurological Surgery, University of Pittsburgh, Pennsylvania;
4. Neurosurgery and Gamma Knife Radiosurgery, Humanitas Research Hospital, Rozzano, Milano, Italy;
5. Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan, People’s Republic of China; and
6. Department of Stereotactic and Radiation Neurosurgery, Na Homolce Hospital, Prague, Czech Republic