[1] Fred Hutchinson Canc Res Ctr, Seattle, WA 98109 USA
[2] NIA, NIH, Lab Mol Gerontol, Baltimore, MD 21224 USA
[3] Univ Rochester, Rochester, NY USA
[4] Lawrence Livermore Natl Lab, Livermore, CA USA
[5] NIH, Radiat Epidemiol Branch, Rockville, MD USA
[6] Hop St Louis, Paris, France
[7] Univ Kentucky, Lexington, KY USA
[8] Univ Texas, MD Anderson Canc Ctr, Houston, TX 77030 USA