[1] Department of Population Sciences,Division of Cancer Etiology
[2] Beckman Research Institute,Division of Cancer Control and Population Sciences
[3] National Cancer Institute,Childrens Center for Cancer and Blood Diseases
[4] Fred Hutchinson Cancer Research Center,Division of Cancer Epidemiology and Genetics
[5] Children's Hospital Los Angeles,Department of Preventive Medicine
[6] National Cancer Institute,Epidemiology and Clinical Investigation Sciences
[7] Keck School of Medicine,undefined
[8] University of Southern California,undefined
[9] School of Public Health & Information Sciences,undefined
[10] University of Louisville,undefined