1. Veterans Affairs Tennessee Valley Healthcare System, Geriatric Research, Education and Clinical Center (GRECC), Nashville, TN, USA
2. Division of Hematology/Oncology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
3. Vanderbilt Ingram Cancer Center, Nashville, TN, USA
4. Department of Biostatistics, Vanderbilt University School of Medicine, Nashville, TN, USA
5. Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN, USA
6. Division of General Internal Medicine and Public Health, Vanderbilt University Medical Center, Nashville, TN, USA
7. Department of General Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
8. Veterans Affairs Portland Health Care System, Center to Improve Veteran Involvement in Care, Pulmonary & Critical Care Medicine, Portland, Oregon
9. Department of Thoracic Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
10. Veterans Health Administration, National Center for Health Promotion and Disease Prevention, Durham, NC, USA
11. Durham VA Health Care System, Radiology, Durham, NC, USA
12. Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
13. Department of Medicine, VA Tennessee Valley Healthcare System, Nashville, TN, USA
14. Department of Health Policy, Vanderbilt University School of Medicine, Nashville, TN, USA