Editorial retrospective: tympanometry.
D000158:Acoustic Impedance Tests; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D003937:Diagnosis, Differential; D006801:Humans; D007223:Infant; D008403:Mass Screening; D010033:Otitis Media / Q000175:diagnosis / Q000517:prevention & control