1. Department of Epidemiology, College of Public Health University of Kentucky Lexington Kentucky
2. Department of Toxicology and Cancer Biology, College of Medicine University of Kentucky Lexington Kentucky
3. Markey Cancer Center, a National Cancer Institute Designated Cancer Center University of Kentucky Lexington Kentucky
4. Division of Cancer Biostatistics, Department of Internal Medicine, College of Medicine University of Kentucky Lexington Kentucky
5. Division of Medical Oncology, Department of Internal Medicine, College of Medicine University of Kentucky Lexington Kentucky