Finding ears that do not hear.
D002675:Child, Preschool; D003638:Deafness / Q000151:congenital* / Q000175:diagnosis; D006319:Hearing Loss, Sensorineural / Q000151:congenital* / Q000175:diagnosis; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008403:Mass Screening