TY - GEN AU - Braida,Louis D. ED - American Speech-Language-Hearing Association TI - Hearing aids: : a review of past research on linear amplification, amplitude compression, and frequency lowering PY - 1979/// CY - Rockville, Md. PB - : American Speech-Language-Hearing Assn. KW - Hearing aids KW - E.007.814.458 KW - United States (country of publication) UR - http://electronicjournals.nal.gov.au/ASHA%20Monographs%20%281-30%29/1979,%20%20ASHA%20Monograph%2019,%20%20Braida%20Durlach%20Lippmann%20et%20al..pdf ER -