Butler, C C Screening children in the first four years of life to undergo early treatment for otitis media with effusion. [electronic resource] - The Cochrane database of systematic reviews 2003 - CD004163 p. digital Publication Type: Journal Article; Review; Systematic Review ISSN: 1469-493X Standard No.: 10.1002/14651858.CD004163 doi Subjects--Topical Terms: Child, PreschoolHearingHumansInfantLanguage DevelopmentMass ScreeningOtitis Media with Effusion--diagnosisRandomized Controlled Trials as Topic