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. 2007 Feb 13;4(2):e59. doi: 10.1371/journal.pmed.0040059

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© 2007 Sandbulte et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Serum samples from human donors were analyzed by NA inhibition assay for reactivity with the NA proteins of A/New Caledonia/20/99 (H1N1), A/Hong Kong/213/03 (H5N1), and A/Vietnam/1203/04 (H5N1).