RT Journal Article SR Electronic T1 Early surgery was better than watchful waiting for language development In children with persistent otitis media with effusion JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 137 OP 137 DO 10.1136/ebm.1999.4.137 VO 4 IS 5 YR 1999 UL http://ebm.bmj.com/content/4/5/137.abstract AB