RT Journal Article SR Electronic(1) A1 Veldhuijzen, I A1 Bronzwaer, S L A M A1 Degener, J A1 Kool, J. L. A1 les participants de EARSS / EARSS participants, Collective YR T1 JF VO OP UL https://www.eurosurveillance.org/content/10.2807/esm.05.03.00024-fr