RT Journal Article SR Electronic T1 A prospective cluster-randomized trial to implement the Canadian CT Head Rule in emergency departments JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association DO 10.1503/cmaj.091974 A1 Stiell, Ian G. A1 Clement, Catherine M. A1 Grimshaw, Jeremy M. A1 Brison, Robert J. A1 Rowe, Brian H. A1 Lee, Jacques S. A1 Shah, Amit A1 Brehaut, Jamie A1 Holroyd, Brian R. A1 Schull, Michael J. A1 McKnight, Douglas A1 Eisenhauer, Mary A. A1 Dreyer, Jonathan A1 Letovsky, Eric A1 Rutledge, Tim A1 MacPhail, Iain A1 Ross, Scott A1 Perry, Jeffrey J. A1 Ip, Urbain A1 Lesiuk, Howard A1 Bennett, Carol A1 Wells, George A. YR 2010 UL http://www.cmaj.ca/content/early/2010/08/23/cmaj.091974.abstract AB