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Altmann, Mathias, Lena Fiebig, Jana Soyka, Rüdiger von Kries, Manuel Dehnert, and Walter Haas. Severe Cases of Pandemic (H1N1) 2009 in Children, Germany. Centers for Disease Control and Prevention, 2011.

Altmann, Mathias, et al. Severe Cases of Pandemic (H1N1) 2009 in Children, Germany. Centers for Disease Control and Prevention, 2011.