Charles R. Scoggins, University of Louisville, School of Medicine, 315 E. Broadway, Suite 303, 40202 Louisville, KY, USA, e-mail: charles.scoggins@louisville.eduChandrajit P. Raut, Brigham & Women's Hospital, Dana-Farber Cancer Institute, Harvard Medical School, Department of Surgery, 75 Francis St., Boston, MA, USA, 02115 e-mail: craut@bwh.harvard.eduJohn T. Mullen, Division of Surgical Oncology, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, Yawkey 7B, Boston, MA 02114, E-mail: jmullen@mgh.harvard.edu