The hearing practitioner and hearing impairment.
D002662:Child Health Services; D002675:Child, Preschool; D003376:Counseling; D005194:Family Practice; D006310:Hearing Aids; D034381:Hearing Loss / Q000175:diagnosis*; D006314:Hearing Loss, Conductive / Q000175:diagnosis; D006319:Hearing Loss, Sensorineural / Q000175:diagnosis; D006801:Humans; D007223:Infant; D007231:Infant, Newborn