Author Contributions: Dr Tammemagi had full
access to all of the data in the study and takes responsibility for the integrity
of the data and the accuracy of the data analysis.
Study concept and design: Tammemagi.
Acquisition of data: Tammemagi, Neslund-Dudas,
Analysis and interpretation of data: Tammemagi,
Drafting of the manuscript: Tammemagi, Nathanson.
Critical revision of the manuscript for important
intellectual content: Tammemagi, Nerenz, Neslund-Dudas, Feldkamp, Nathanson.
Statistical analysis: Tammemagi.
Obtained funding: Tammemagi.
Administrative, technical, or material support:
Tammemagi, Neslund-Dudas, Feldkamp.
Study supervision: Tammemagi.
Financial Disclosures: None reported.
Funding/Support: This study was funded by US
Department of Defense (US Army Medical Research and Material Command) grant
Role of the Sponsor: The funding agency did
not have any control or influence over the design and conduct of the study
in any fashion, including collection, management, analysis, and interpretation
of the data; and preparation, review, or approval of the manuscript.