1. Department of Nutritional Sciences, Pennsylvania State University, University Park, PA 16802
2. Department of Pharmacology, Pennsylvania State College of Medicine, Hershey, PA 17078
3. Department of Public Health Sciences, Pennsylvania State College of Medicine, Hershey, PA 17078
4. Cancer Prevention and Control Program, Penn State Hershey Cancer Institute, Hershey, PA 17078
5. Northeast Regional Cancer Institute, Scranton, PA 18510
6. Department of Medicine, Lehigh Valley Hospital, Allentown, PA 18103
7. Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD 20814