Clindamycin resistant emm33 Streptococcus pyogenes emerged among invasive infections in Helsinki metropolitan area, Finland, 2012 to 2013 Pesola, A K and Sihvonen, R and Lindholm, L and Pätäri-Sampo, A, Eurosurveillance, 20, 21117 (2015), https://doi.org/10.2807/1560-7917.ES2015.20.18.21117