[1] University of Maryland Baltimore,Division of General and Oncologic Surgery, Department of Surgery
[2] Memorial Sloan-Kettering Cancer Center,Division of Surgical Oncology, Department of Surgery
[3] Memorial Sloan-Kettering Cancer Center,Department of Epidemiology and Biostatistics
[4] Memorial Sloan-Kettering Cancer Center,Department of Gastroenterology, Hepatology, and Nutrition