RT Journal Article SR Electronic T1 Avant-propos JF Canadian Journal of Surgery JO CAN J SURG FD Canadian Medical Association SP S81 OP S81 DO 10.1503/cjs.006715 VO 58 IS 3 Suppl 3 A1 Col Homer Tien YR 2015 UL http://canjsurg.ca/content/58/3_Suppl_3/S81.abstract