[1] NIH, Bethesda, MD 20892 USA
[2] Univ Washington, Seattle, WA 98195 USA
[3] Emory Univ, Atlanta, GA 30322 USA
[4] Pfizer Inc, Ann Arbor, MI USA
[5] Univ Pittsburgh, Pittsburgh, PA USA
[6] Wake Forest Univ, Winston Salem, NC 27109 USA
[7] Medstar Hlth, Baltimore, MD USA
[8] Univ Vermont, Burlington, VT USA