Assessment of hearing.
D000158:Acoustic Impedance Tests; D001299:Audiometry / Q000379:methods; D001341:Autonomic Nervous System / Q000502:physiology; D002648:Child; D002652:Child Behavior; D002675:Child, Preschool; D003214:Conditioning, Classical; D004432:Ear, Middle / Q000502:physiology; D004519:Education, Special; D005072:Evoked Potentials, Auditory; D006311:Hearing Disorders / Q000175:diagnosis* / Q000523:psychology / Q000628:therapy; D006801:Humans; D007223:Infant; D010988:Play and Playthings