1. From the Population Health Research Institute (F.R., S.S.A., K.K.T., M.M., S.Y.), Department of Medicine (S.S.A., K.K.T., M.M., S.Y.), and Department of Clinical Epidemiology and Biostatistics (S.S.A., K.K.T., M.M., S.Y.), McMaster University, Hamilton, Canada; Faculty of Medicine (F.R.) and Department of Medicine (V.V.), University of Toronto, Toronto, Canada; and Six Nations Health Services (B.D., R.J.), Ohsweken, Ontario, Canada.