RT Journal Article SR Electronic T1 Persistent otitis media, tympanostomy tubes and development JF Archives of disease in childhood - Education & practice edition JO Arch Dis Child Educ Pract Ed FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP ep75 OP ep75 DO 10.1136/adc.2007.119321 VO 92 IS 3 YR 2007 UL http://ep.bmj.com/content/92/3/ep75.abstract AB