1 Division of Neurology (Medina-Rioja, Masellis), Department of Medicine, Sunnybrook Health Sciences Centre and University of Toronto, Toronto, Ont.; Neurology (Gonzalez-Calderon), Instituto Nacional de Neurologia y Neurocirugia Manuel Velasco Suarez, Mexico City, Mexico; L.C. Campbell Cognitive Neurology Research Unit (Masellis), Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, Ont. raul.medinarioja@sunnybrook.ca.
2 Division of Neurology (Medina-Rioja, Masellis), Department of Medicine, Sunnybrook Health Sciences Centre and University of Toronto, Toronto, Ont.; Neurology (Gonzalez-Calderon), Instituto Nacional de Neurologia y Neurocirugia Manuel Velasco Suarez, Mexico City, Mexico; L.C. Campbell Cognitive Neurology Research Unit (Masellis), Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, Ont.