| 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, University of California, San Francisco, 505 Parnassus Avenue, Room 779M, San Francisco, CA 94143, USA;2. Philip R. Lee Institute for Health Policy Studies, Global Health Economics Consortium, University of California, San Francisco, 3333 California St., Suite 265, Box 0936, San Francisco, CA 94118, USA;1. Division of Neurosurgery, Toronto Western Hospital, University of Toronto, 399 Bathurst Street, Toronto, Ontario M5T 2S8, Canada;2. Joint Centre for Bioethics, University of Toronto, 155 College Street, Suite 754, Toronto, Ontario M5T 1P8, Canada;1. Division of Hospital Medicine, Department of Medicine and Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA;2. Patient Safety and Quality, Department of Neurological Surgery, 533 Parnassus Avenue, Box 0131, San Francisco, CA 94143, USA |
