*Division of Neurosurgery and Spine Program, Toronto Western Hospital; Toronto Western Research Institute, University Health Network; and Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada;
‡Division of Neurosurgery, Department of Surgery, University of Toronto and Toronto Western Hospital, Toronto, Ontario, Canada;
§University of Kansas, Department of Neurosurgery, Kansas City, Kansas;
Departments of ¶Neurosurgery and
‖Orthopaedics, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
Correspondence: Michael G. Fehlings, MD, PhD, Division of Neurosurgery, Ste 4WW-449, Toronto Western Hospital, 399 Bathurst St, Toronto M5T 2S8, ON, Canada. E-mail: [email protected]