1. Center for Public Health Genomics , Department of Public Health Sciences, , Charlottesville, VA 22903 , USA
2. University of Virginia , Department of Public Health Sciences, , Charlottesville, VA 22903 , USA
3. Department of Cancer Prevention and Control, Roswell Park Comprehensive Cancer Center , Buffalo, NY 14263 , USA
4. Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center , Buffalo, NY 14263 , USA
5. Division of Public Health Sciences, Fred Hutchinson Cancer Research Center , Seattle, WA 98109 , USA
6. Department of Epidemiology, University of Washington, School of Public Health , Seattle, Washington, 98195 , USA