1. Division of Pediatric Epidemiology and Clinical Research, Department of Pediatrics; University of Minnesota; Minneapolis MN
2. University of Minnesota Masonic Cancer Center; Minneapolis MN
3. Department of Mathematics and Statistics; University of New Mexico; Albuquerque NM
4. Sidney Kimmel Comprehensive Cancer Center; Johns Hopkins University; Baltimore MD
5. Division of Pediatric Hematology and Oncology, Department of Pediatrics; Vanderbilt University School of Medicine; Nashville TN
6. Cancer Prevention Institute of California; Fremont CA
7. Department of Health Research and Policy (Epidemiology); Stanford University; Stanford CA
8. Registre Des Hémopathies Malignes De La Gironde; Institut Bergonié; Bordeaux France
9. Centre INSERM U897, CIC 1401; Centre D'investigation Clinique; Bordeaux France
10. Division of Epidemiology, Biostatistics, and Preventive Medicine, Department of Internal Medicine; University of New Mexico; Albuquerque NM