PT - JOURNAL ARTICLE ED - , TI - Highlights DP - 2012 Dec 11 TA - Canadian Medical Association Journal PG - 1967--1967 VI - 184 IP - 18 4099 - http://www.cmaj.ca/content/184/18/1967.short 4100 - http://www.cmaj.ca/content/184/18/1967.full SO - CMAJ2012 Dec 11; 184