1. Duke Cancer Institute, Duke University, Durham, NC
2. Department of Biostatistics & Bioinformatics, Duke University School of Medicine, Durham, NC
3. Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
4. Centre for Cancer Research & Department of General Practice and Primary Care, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Melbourne, Victoria, Australia
5. Victorian Comprehensive Cancer Centre, Melbourne, Victoria, Australia
6. Department of Statistics, Florida State University, Tallahassee, FL
7. Duke University Medical Center, Durham, NC
8. Alliance Statistics and Data Management Center, Duke University, Durham, NC