PT - JOURNAL ARTICLE ED - , TI - Oseltamivir was safe and effective for prophylaxis of influenza in the frail elderly AID - 10.1136/ebm.7.1.10 DP - 2002 Jan 01 TA - Evidence Based Medicine PG - 10--10 VI - 7 IP - 1 4099 - http://ebm.bmj.com/content/7/1/10.short 4100 - http://ebm.bmj.com/content/7/1/10.full SO - Evid Based Med2002 Jan 01; 7