1. From St Paul’s Hospital, University of British Columbia, Vancouver, British Columbia, Canada (J.G.W., D.A.W., J.Y., R.G., J.-B.M., R.G.C., N.W., F.N., M.J., C.R.T., R.M., J.L., B.M., S.V.L., A.C.); Quebec Heart and Lung Institute, Quebec City, Quebec, Canada (J.R.-C., E.D.); Toronto General Hospital, Toronto, Ontario, Canada (M.O., E.H.); and King’s College Hospital, London, UK (O.W.).