PT - JOURNAL ARTICLE AU - Richard H. Glazier TI - Association versus causation AID - 10.1503/cmaj.69466 DP - 2018 Jul 16 TA - Canadian Medical Association Journal PG - E863--E863 VI - 190 IP - 28 4099 - http://www.cmaj.ca/content/190/28/E863.short 4100 - http://www.cmaj.ca/content/190/28/E863.full SO - CMAJ2018 Jul 16; 190