PT - JOURNAL ARTICLE AU - Lauren Vogel TI - Choosing Wisely Canada seeks system change AID - 10.1503/cmaj.109-5262 DP - 2016 May 17 TA - Canadian Medical Association Journal PG - E135--E136 VI - 188 IP - 8 4099 - http://www.cmaj.ca/content/188/8/E135.short 4100 - http://www.cmaj.ca/content/188/8/E135.full SO - CMAJ2016 May 17; 188