1. Thoracic Oncology, Department of Medicine, Memorial Sloan Kettering Cancer Center and Weill Cornell Medical Center, New York, NY
2. Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN
3. Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX
4. Department of Medicine, Sidney Kimmel Cancer Center, Johns Hopkins University, Baltimore, MD