1 Division of Neurology (AAS) and Division of Cardiology (MKD), Faculty of Medicine, and Department of Surgery (ST), Department of Paediatrics (AR), and Department of Radiology (DL), University of British Columbia, Vancouver, Canada; British Columbia Cancer Agency (BCCA) - Vancouver Centre, Vancouver, Canada (ST, CS).
2 Division of Neurology (AAS) and Division of Cardiology (MKD), Faculty of Medicine, and Department of Surgery (ST), Department of Paediatrics (AR), and Department of Radiology (DL), University of British Columbia, Vancouver, Canada; British Columbia Cancer Agency (BCCA) - Vancouver Centre, Vancouver, Canada (ST, CS) dlang@imail.ubc.ca.