1. Division of Neurosurgery, Lehigh Valley Health Network, Allentown, Pennsylvania;
2. Department of Neurosurgery, Houston Methodist Neurological Institute, Houston, Texas;
3. Department of Neurosurgery, Fondazione I.R.C.C.S. Istituto Neurologico “C. Besta,” Milan, Italy;
4. Department of Neurosurgery, Karolinska University Hospital and Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden; and
5. Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio