1. 1Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland.
2. 2Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
3. 3Department of Medicine, Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts.
4. 4Division of Hematology-Oncology, Department of Medicine, Vanderbilt University Medical Center and Vanderbilt-Ingram Cancer Center, Nashville, Tennessee.
5. 5Department of Medicine, Collaborative Research Centers, Memorial Sloan Kettering Cancer Center, New York, New York.
6. 6AACR Project GENIE, American Association for Cancer Research, Pennsylvania.
7. 7Center for Observational Research, Amgen Inc., Thousand Oaks, California.
8. 8Department of Medicine, Division of Clinical Research, Memorial Sloan Kettering Cancer Center, New York, New York.