RT Journal Article SR Electronic(1) A1 Morré, S A A1 Catsburg, A A1 de Boer, I M A1 Spaargaren, J A1 de Vries, H JC A1 Schirm, J A1 Savelkoul, P HM A1 van Steenbergen, J A1 Swaan, C M YR T1 JF VO OP UL https://www.eurosurveillance.org/content/10.2807/esm.12.10.00739-fr