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Gilsdorf A, Poggensee G; Working Group Pandemic Influenza A(H1N1)v.Gilsdorf A, et al. Among authors: poggensee g.Euro Surveill. 2009 Aug 27;14(34):19318. doi: 10.2807/ese.14.34.19318-en.Euro Surveill. 2009.PMID: 19712649Free article.