RT Journal Article SR Electronic(1) A1 Nokleby, H A1 De Carvalho Gomes, H A1 Johansen, K A1 Kreidl, P YR 2010 T1 Protection against poliomyelitis in Europe JF Eurosurveillance VO 15 IS 17 SP 19556 OP DO https://doi.org/10.2807/ese.15.17.19556-en UL https://www.eurosurveillance.org/content/10.2807/ese.15.17.19556-en