PT - JOURNAL ARTICLE ED - , TI - Aspirin improved outcome of acute stroke at 6 months but heparin did not AID - 10.1136/ebm.1997.2.172 DP - 1997 Dec 01 TA - Evidence Based Medicine PG - 172--172 VI - 2 IP - 6 4099 - http://ebm.bmj.com/content/2/6/172.short 4100 - http://ebm.bmj.com/content/2/6/172.full SO - Evid Based Med1997 Dec 01; 2