RT Journal Article SR Electronic T1 Of carts and horses JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 614 OP 614 DO 10.1503/cmaj.114-0030 VO 186 IS 8 A1 James Downar A1 Tracey M. Bailey A1 Jennifer Kagan YR 2014 UL http://www.cmaj.ca/content/186/8/614.2.abstract