PT - JOURNAL ARTICLE ED - , TI - Review: donepezil, metrifonate, rivastigmine, and <em>Ginkgo biloba</em> are more effective than placebo in Alzheimer's disease AID - 10.1136/ebm.6.1.14 DP - 2001 Jan 01 TA - Evidence Based Medicine PG - 14--14 VI - 6 IP - 1 4099 - http://ebm.bmj.com/content/6/1/14.short 4100 - http://ebm.bmj.com/content/6/1/14.full SO - Evid Based Med2001 Jan 01; 6