RT Journal Article SR Electronic T1 Users’ guide to the surgical literature JF Canadian Journal of Surgery JO CAN J SURG FD Canadian Medical Association SP 57 OP 62 VO 48 IS 1 A1 Daniel W. Birch A1 Charles H. Goldsmith A1 Ved Tandan A1 , YR 2005 UL http://canjsurg.ca/content/48/1/57.abstract