Affiliation: | a Department of Thoracic and Cardiovascular Surgery, The University of Texas M. D. Anderson Cancer Center, Houston, Texas b Department of Gastrointestinal Medical Oncology, The University of Texas M. D. Anderson Cancer Center, Houston, Texas c Department of Pathology, The University of Texas M. D. Anderson Cancer Center, Houston, Texas d Department of Radiation Oncology, The University of Texas M. D. Anderson Cancer Center, Houston, Texas e Department of Diagnostic Radiology, The University of Texas M. D. Anderson Cancer Center, Houston, Texas f Department of Nuclear Medicine, The University of Texas M. D. Anderson Cancer Center, Houston, Texas g Department of Gastroenterology, Hepatology and Nutrition, The University of Texas M. D. Anderson Cancer Center, Houston, Texas h Department of Thoracic and Cardiovascular Surgery, Cleveland Clinic, Cleveland, Ohio |