TG and deafness: Tests performed in Tg(+);Slc26a4+/+, Tg(−);Slc26a4Δ/Δ and Tg(+);Slc26a4Δ/Δ mice confirmed profound deafness in Tg(−);Slc26a4Δ/Δ mice (Fig. 9B) consistent with previous findings in Slc26a4Δ/Δ mice [14], [18].