1994a-745 1996k-749 administration audiology child cochlea compression(audiology) congresses correctionofhearingimpairment designandconstruction diagnosis equipmentdesign etc fitting handbooks hearingdisorders hearingdisordersinchildren hearingimpaired hearingloss infant languagedisorders loudnessperception manuals marketingofhealthservices medical methods organization otolaryngology physiology practicemanagement preschool professional-patientrelations professionalpractice prosthesisfitting psychology rehabilitation speechdisorders standards telemedicine testing therapy wv274h4321981 wv274h4331996 wv274h4351975 wv274s8981994