RT Journal Article SR Electronic T1 After hours surgery and mortality: the potential role of acute care surgery models as a factor accounting for results JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E219 OP E219 DO 10.1503/cmaj.732681 VO 189 IS 5 A1 David R. Lardner A1 Carmen A. Brauer A1 A. Rob Harrop A1 Ali MacRobie YR 2017 UL http://www.cmaj.ca/content/189/5/E219.abstract AB