Pendred syndrome is caused by mutations in a putative sulphate transporter gene (PDS) - Everett, L A; Glaser, B; Beck, J C; Idol, J R; Buchs, A; Heyman, M; Adawi, F; Hazani, E; Nassir, E; Baxevanis, A D; Sheffield, V C; Green, E D (Nat Genet, 1997)