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This study was supported by core funding for the Institute for Laboratory Animal Research from the National Science Foundation under contract DBI-0838150; the US Department of the Army under contract W81XWH-09-1-0664; the US Department of the Navy under contract N00014-05-G-0288, Task Order #21; and the Department of Health and Human Services/National Institutes of Health under contract N01-OD-4-2139, Task Order #221. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the views of the organizations or agencies that provided support for the project.
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