1. From the Joint Department of Biostatistics and Epidemiology and Occupational Health, Faculty of Medicine (J.T., N.E.M., E.L., J.H., S.W.-D.), School of Physical and Occupational Therapy Faculty of Medicine (N.E.M., S.W.-D.), and Departments of Psychiatry and Economics (E.L.), McGill University; Division of Clinical Epidemiology, McGill University Health Center, Royal Victoria Hospital Site (N.E.M., J.H., S.W.-D., S.S.); and Department of Neurology, McGill University Health Center, Montreal General...