PT - JOURNAL ARTICLE AU - Sox, Colin TI - Acute otitis media: antibiotics are moderately effective and mildly increase the risk of adverse effects; prevalence of different causative bacteria changed after introduction of the heptavalent pneumococcal conjugate vaccine AID - 10.1136/ebm1407 DP - 2011 Dec 01 TA - Evidence Based Medicine PG - 181--182 VI - 16 IP - 6 4099 - http://ebm.bmj.com/content/16/6/181.short 4100 - http://ebm.bmj.com/content/16/6/181.full SO - Evid Based Med2011 Dec 01; 16