RT Journal Article SR Electronic T1 Research questions, hypotheses and objectives JF Canadian Journal of Surgery JO CAN J SURG FD Canadian Medical Association SP 278 OP 281 VO 53 IS 4 A1 Patricia Farrugia A1 Bradley A. Petrisor A1 Forough Farrokhyar A1 Mohit Bhandari YR 2010 UL http://canjsurg.ca/content/53/4/278.abstract