RT Journal Article SR Electronic T1 Postexposure prophylaxis with oseltamivir reduced influenza transmission in households JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 142 OP 142 DO 10.1136/ebm.9.5.142 VO 9 IS 5 YR 2004 UL http://ebm.bmj.com/content/9/5/142.abstract AB