1. Department of Surgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
2. Harvard Medical School, Boston, MA, USA
3. Department of Surgery, Yale-New Haven Hospital, Yale School of Medicine, New Haven, CT, USA
4. Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
5. Department of Surgery, Hartford Hospital, University of Connecticut, Hartford, CT, USA