1. Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, New York
2. Department of Health Policy and Management, University of North Carolina Gillings School of Global Public Health, Chapel Hill
3. Cecil G. Sheps Center for Health Services Research, Chapel Hill, North Carolina
4. Department of Hematology/Oncology, University of North Carolina at Chapel Hill School of Medicine
5. Lineberger Comprehensive Cancer Center, Chapel Hill, North Carolina
6. Davidoff Cancer Center, Rabin Medical Center, Petach Tikvah, Israel