%0 Journal Article %A Hagerup-Jenssen, Maria %A Kongsrud, Sigrun %A Riise, Øystein Rolandsen %T Suboptimal MMR2 vaccine coverage in six counties in Norway detected through the national immunisation registry, April 2014 to April 2017 %D 2017 %J Eurosurveillance %V 22 %N 17 %P 30518 %R doi:https://doi.org/10.2807/1560-7917.ES.2017.22.17.30518 %K measles-mumps-rubella (MMR) vaccine %K SYSVAK %K Vaccination Coverage %K Rule engine %K RVC %K Immunisation registry %U https://www.eurosurveillance.org/content/10.2807/1560-7917.ES.2017.22.17.30518