1. Center for Innovations in Quality, Effectiveness, and Safety, Michael E DeBakey VA Medical Center Houston Texas USA
2. Michael E. DeBakey Department of Surgery Baylor College of Medicine Houston Texas USA
3. Department of Surgical Oncology University of Texas MD Anderson Cancer Center Houston Texas USA
4. Department of Medicine, Epidemiology, and Population Sciences, Dan L Duncan Comprehensive Cancer Center Baylor College of Medicine Houston Texas USA
5. Division of Medical Oncology, Department of Medicine Baylor College of Medicine Houston Texas USA
6. Veterans Affairs Health Services Research and Development Center for Innovation to Implementation Palo Alto Veterans Affairs Health Care System Menlo Park California USA
7. Department of Surgery Stanford University Palo Alto California USA
8. Section of Health Services Research, Department of Medicine Baylor College of Medicine Houston Texas USA