1. From Medicago, Quebec, QC (K.J.H., P.G., G.H., A.I.M., S.P., P.S., K.B., J.A., I.B., J.D., N.C., M.M.J.C., J.J.-W., N.L., S.L., A.L., A.M., E.P., J.P., A.S., L.T., J.N., M.-A.D., S.T., Y.K., B.J.W.), Dawson Clinical Research, Guelph, ON (G.W.), and Research Institute of the McGill University Health Center, Montreal (B.J.W.) — all in Canada; Hospital Militar (G.P.M.) and Fundación INFANT (F.P.P.), Buenos Aires, Clinica Mayo de Urgencias Medicas Cruz Blanca, Tucuman (C.L.), and Sanatorio Allende, Cordoba ...