1 Department of Neurosurgery, Weill Cornell Medicine, New York Presbyterian Hospital, New York, New York, USA. Electronic address: schwarh@med.cornell.edu.
2 Department of Neurosurgery, Weill Cornell Medicine, New York Presbyterian Hospital, New York, New York, USA.
3 Department of Neurological Surgery, Clinical Institute of Neurosciences, Hospital Clinic of Barcelona, University of Barcelona, Barcelona, Spain.
4 Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
5 Department of Neuroscience, "G. Rummo" Hospital, Benevento, Italy.
6 Department of Neurosurgery, Otolaryngology-Head and Neck Surgery, University of Washington, Seattle, Washington, USA.