PT - JOURNAL ARTICLE ED - , TI - Daily folic acid supplementation for 3 years improved cognitive function in older persons AID - 10.1136/ebm.12.3.83 DP - 2007 Jun 01 TA - Evidence Based Medicine PG - 83--83 VI - 12 IP - 3 4099 - http://ebm.bmj.com/content/12/3/83.short 4100 - http://ebm.bmj.com/content/12/3/83.full SO - Evid Based Med2007 Jun 01; 12