Letter to the Editor: Smoking and older age associated with mumps in an outbreak in a group of highly-vaccinated individuals attending a youth club party, the Netherlands, 2012
Hassan, J and Carr, M and Connell, J and De Gascun, C, Eurosurveillance, 19, 20807 (2014), https://doi.org/10.2807/1560-7917.ES2014.19.20.20807