| Affiliation: | 1. Department of Surgery, Spinal Program, Krembil Neuroscience Center, 399 Bathurst Street, Suite 4W-449, Toronto, Ontario, M5T 2S8, Canada;2. Division of Neurosurgery, Toronto Western Hospital, 399 Bathurst Street, WW 4-427, Toronto, Ontario, M5T 2S8, Canada;1. Department of Neurological Surgery, Carolina Neurosurgery and Spine Associates, Carolinas Healthcare System Neuroscience Institute, 225 Baldwin Road, Charlotte, NC 28204, USA;2. Department of Neurosurgery, Vanderbilt University Medical Center, 1211 Medical Center Drive, Nashville, TN 37232, USA;3. Department of Neurological Surgery, University of California San Francisco, 505 Parnassus Avenue, San Francisco, CA 94143, USA;4. Department of Neurological Surgery, Oregon Health & Science University, 3181 Southwest Sam Jackson Park Road, Portland, OR 97239, USA;1. Department of Neurosurgery, Emory University School of Medicine, 1365B Clifton Road, Northeast, Atlanta, GA 30322, USA;2. Neurosurgery Residency Program, Department of Neurosurgery, Emory Pituitary Center, Emory University School of Medicine, 1365B Clifton Road, Northeast, Atlanta, GA 30322, USA;1. Department of Neurological Surgery, University of California, San Francisco, San Francisco, California, USA;2. Center for Healthcare Value, University of California, San Francisco, San Francisco, California, USA;3. Department of Medicine, University of California, San Francisco, San Francisco, California, USA;4. Department of Medicine, Dell Medical School at the University of Texas at Austin, Austin, Texas, USA;5. Continuous Process Improvement Department, UCSF Health, San Francisco, California, USA;1. Department of Neurological Surgery, University of California, San Francisco, 505 Parnassus Avenue, M787, San Francisco, CA 94143, USA;2. Department of Neurosurgery, Mayfield Clinic, University of Cincinnati, 506 Oak Street, Cincinnati, OH 45219, USA;1. Department of Diagnostic, Therapeutic and Interventional Radiology, Medical College of Georgia at Georgia Regents University, 1120 15th Street, Augusta, GA 30912;2. Pritzker School of Medicine, University of Chicago, Chicago, IL |
