RT Journal Article SR Electronic(1) A1 Lemos, C A1 Ramirez, R A1 Ordobas, M A1 Guibert, D H A1 Sanz, J C A1 Garcia, L A1 Martinez Navarro, J. F. YR T1 JF VO OP UL https://www.eurosurveillance.org/content/10.2807/esm.09.04.00463-es