1. From the Division of Neurosurgery (A.P.W.), Department of Surgery, University of Ottawa, The Ottawa Hospital; Faculty of Kinesiology (S.T.H.), University of Toronto; Division of Neurosurgery (Z.K., N.H.), Department of Surgery, University of British Columbia, Royal Columbian Hospital, New Westminster; Department of Diagnostic Radiology (U.-E.E.), Dalhousie University, QEII Health Sciences Centre, Halifax; Division of Neurology (R.F.), Department of Medicine, University of Ottawa, The Ottawa...