PT - JOURNAL ARTICLE AU - Robert Y. Shaw TI - Absolute risk reduction a must AID - 10.1503/cmaj.111-2067 DP - 2011 Sep 20 TA - Canadian Medical Association Journal PG - 1517--1518 VI - 183 IP - 13 4099 - http://www.cmaj.ca/content/183/13/1517.4.short 4100 - http://www.cmaj.ca/content/183/13/1517.4.full SO - CMAJ2011 Sep 20; 183