RT Journal Article SR Electronic(1) A1 Paez Jimenez, A A1 Pimentel, R A1 Martinez de Aragon, M V A1 Hernández Pezzi, G A1 Mateo, S A1 Martinez Navarro, J. F. YR T1 JF VO OP UL https://www.eurosurveillance.org/content/10.2807/esm.09.03.00449-es