00253nam a2200097Ia 4500008004100000082001700041100003500058245003700093264001700130300000800147200526s9999||||xx |||||||||||||| ||und||  a617.8  COL S  aColletti, V , Stephens, S.D.G. 0aDisorders with Defective Hearing  bKargerc1985  a216