1. Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota 55455, United States
2. Department of Medicinal Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
3. Epidemiology Program, University of Hawaii Cancer Center, Honolulu, Hawaii 96822, United States
4. Department of Preventative Medicine, School of Medicine, University of Southern California, Los Angeles, California 90089, United States
5. Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, Tennessee 37232, United States