RT Journal Article SR Electronic T1 Oseltamivir was safe and effective for prophylaxis of influenza in the frail elderly JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 10 OP 10 DO 10.1136/ebm.7.1.10 VO 7 IS 1 YR 2002 UL http://ebm.bmj.com/content/7/1/10.abstract AB