[1] Univ Pittsburgh, Pittsburgh, PA USA
[2] US Army Res Inst Environm Med, Mil Performance Div, Natick, MA USA
[3] US Army Res Inst Environm Med, Natick, MA USA
[4] Wake Forest Univ, Winston Salem, NC USA
[5] Univ Southern Denmark, Odense, Denmark
[6] San Francisco Coordinating Ctr, San Francisco, CA USA