| Affiliation: | 1. Department of Neurosurgery, Barrow Neurological Institute, 350 West Thomas Road, Phoenix, AZ 85013, USA;2. Department of Neurosurgery, Clinical Neurosciences Center, University of Utah, 175 N. Medical Drive East, Salt, Lake City, UT 84132, USA;3. Department of Neurosurgery, Washington University in St. Louis, 660 S. Euclid, Box 8057, St. Louis, MO 63110, USA;4. Department of Neurosurgery, Medical University of South Carolina, 96 Jonathan Lucas Street, CSB 301, MSC 606, Charleston, SC 29425-6160, USA |
