[1] NCI, Div Canc Epidemiol & Genet, NIH, Bethesda, MD 20892 USA
[2] Leidos Biomed Res, Frederick Natl Lab Canc Res, Frederick, MD USA
[3] Nationwide Childrens Hosp, Columbus, OH USA
[4] Ohio State Univ, Dept Pathol & Pediat, Columbus, OH 43210 USA
[5] Childrens Hosp, Albert Einstein Coll Med, Montefiore, NY USA
[6] NCI, Ctr Canc Res, NIH, Bethesda, MD 20892 USA
[7] Univ Navarra, Univ Navarra Clin, Dept Pediat, E-31080 Pamplona, Spain
[8] Univ Toronto, Litwin Ctr Canc Genet, Lunenfeld Tanenbaum Res Inst, Mt Sinai Hosp, Toronto, ON M5S 1A1, Canada
[9] Univ So Calif, Keck Sch Med, Dept Prevent Med, Los Angeles, CA 90089 USA