PT - JOURNAL ARTICLE ED - , TI - The validity of recommendations from clinical guidelines: a survival analysis AID - 10.1503/cmaj.161414 DP - 2017 Jan 09 TA - Canadian Medical Association Journal PG - E33--E33 VI - 189 IP - 1 4099 - http://www.cmaj.ca/content/189/1/E33.short 4100 - http://www.cmaj.ca/content/189/1/E33.full SO - CMAJ2017 Jan 09; 189