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Follow Eurosurveillance on Twitter
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View Affiliations Hide AffiliationsCollective Eurosurveillance editorial teameurosurveillance ecdc.europa.eu
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Citation style for this article: . Follow Eurosurveillance on Twitter. Euro Surveill. 2012;17(3):pii=20063. https://doi.org/10.2807/ese.17.03.20063-en
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