1 Department of Imaging, Dana-Farber Cancer Institute, Boston.
2 Department of Radiology, Brigham and Women's Hospital, Boston.
3 Harvard Medical School, Boston.
4 Department of Medical Oncology, Dana-Farber Cancer Institute, Boston.
5 Division of Surgical Oncology, Department of Surgery, Brigham and Women's Hospital and Gastrointestinal Surgical Center, Dana-Farber/Brigham and Women's Cancer Center, Boston.
6 Department of Radiation Oncology, Dana-Farber Cancer Institute and Brigham and Women's Hospital, Boston, USA.