1. 1Cancer Control and Population Sciences, Huntsman Cancer Institute at the University of Utah, Salt Lake City, Utah.
2. 2Cancer Biostatistics Shared Resource, Huntsman Cancer Institute at the University of Utah, Salt Lake City, Utah.
3. 3Social & Scientific Systems, Inc., a DLH Holdings Company, Durham, North Carolina.
4. 4Department of Public Health, Brigham Young University, Provo, Utah.
5. 5Department of Pediatrics, University of Utah School of Medicine, Salt Lake City, Utah.
6. 6Oak Ridge National Laboratory, United States Department of Energy, Oak Ridge, Tennessee.
7. 7College of Nursing, University of Utah, Salt Lake City, Utah.
8. 8Department of Surgery, University of Utah School of Medicine, Salt Lake City, Utah.