increased or absent threshold for auditory brainstem response_Lrig1<Gt(GST4169C6)Lex>/Lrig1<Gt(GST4169C6)Lex>,Lrig2<Gt(RST656)Byg>/Lrig2<Gt(RST656)Byg>
increased or absent threshold for auditory brainstem response_Lrig1<Gt(GST4169C6)Lex>/Lrig1<Gt(GST4169C6)Lex>,Lrig2<Gt(RST656)Byg>/Lrig2<Gt(RST656)Byg>