RT Journal Article SR Electronic T1 No difference existed in developmental outcomes at 3 years of age between early or delayed tympanostomy for otitis media JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 170 OP 170 DO 10.1136/ebm.6.6.170 VO 6 IS 6 YR 2001 UL http://ebm.bmj.com/content/6/6/170.abstract AB