A funding organization and multiple grants to the second author (RMD) were incorrectly omitted from the Funding Statement. The Funding Statement should read:
"This study was supported by a USUHS Intramural Grant, and a USUHS predoctoral grant. The work was additionally funded by Defense Threat Reduction Agency grant H.1006_09_US_R and Defense Medical Research and Development Program grant D10_I_AR_J7_119 from the US Department of Defense to RMD. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript."
Footnotes
Competing Interests: No competing interests declared.