RT Journal Article SR Electronic T1 Choosing Wisely around the world JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E341 OP E342 DO 10.1503/cmaj.109-5111 VO 187 IS 11 A1 Lauren Vogel YR 2015 UL http://www.cmaj.ca/content/187/11/E341.abstract