1. Surgery Branch; National Cancer Institute; National Institutes of Health; Bethesda Maryland
2. Georgetown University Hospital; Washington District of Columbia
3. University of South Florida, Tampa General Hospital; Tampa Florida
4. Biostatistics and Data Management Section, Office of the Clinical Director; National Institutes of Health; Bethesda Maryland
5. Thoracic Oncology Section, National Cancer Institute; National Institutes of Health; Bethesda Maryland
6. Bon Secours Cancer Institute; Richmond Virginia
7. Uniformed Services University of the Health Sciences; Bethesda Maryland