RT Journal Article SR Electronic(1) A1 de Greeff, S A1 Ruijs, Helma A1 Timen, A A1 van Deuren, M A1 de Melker, H A1 Spanjaard, L A1 Dankert, J A1 M de Vries YR 2003 T1 First effects of meningococcal C vaccination campaign in the Netherlands JF Weekly releases (1997–2007) VO 7 IS 30 SP 2264 OP DO https://doi.org/10.2807/esw.07.30.02264-en UL https://www.eurosurveillance.org/content/10.2807/esw.07.30.02264-en