From the Department of Surgery (C.G.B., E.D.), University of Calgary, Calgary, Alberta; and Department of Surgery (M.S.H.), University of British Columbia, Vancouver, British Columbia, Canada; and Department of Surgery (K.D.L.), Harvard University, Boston, Massachusetts.
Submitted: September 5, 2015, Revised: February 13, 2016, Accepted: February 16, 2016, Published online: March 7, 2016.
Address for reprints: Chad G. Ball, MD, MSc, Department of Surgery, Foothills Medical Center, University of Calgary, 1403-29 St NW, Calgary, Alberta, Canada, T2N 2T9; email: firstname.lastname@example.org.