RT Journal Article SR Electronic T1 US stroke guidelines provoke mixed reaction JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E185 OP E186 DO 10.1503/cmaj.109-4732 VO 186 IS 6 A1 Lauren Vogel YR 2014 UL http://www.cmaj.ca/content/186/6/E185.abstract AB