RT Journal Article SR Electronic(1) A1 Grove Krause, T A1 Jakobsen, S A1 Haarh, M A1 Mølbak, K YR 2012 T1 The Danish vaccination register JF Eurosurveillance VO 17 IS 17 SP 20155 OP DO https://doi.org/10.2807/ese.17.17.20155-en UL https://www.eurosurveillance.org/content/10.2807/ese.17.17.20155-en