Did introduction of pneumococcal vaccines in the Netherlands decrease the need for respiratory antibiotics in children? Analysis of 2002 to 2013 data Gefenaite, G and Bijlsma, M J and Bos, H J and Hak, E, Eurosurveillance, 19, 20948 (2014), https://doi.org/10.2807/1560-7917.ES2014.19.44.20948