RT Journal Article SR Electronic(1) A1 Hagerup-Jenssen, Maria A1 Kongsrud, Sigrun A1 Riise, Øystein Rolandsen YR 2017 T1 Suboptimal MMR2 vaccine coverage in six counties in Norway detected through the national immunisation registry, April 2014 to April 2017 JF Eurosurveillance VO 22 IS 17 SP 30518 OP DO https://doi.org/10.2807/1560-7917.ES.2017.22.17.30518 UL https://www.eurosurveillance.org/content/10.2807/1560-7917.ES.2017.22.17.30518