Jonard et al. [29] screened 25 patients with unilateral deafness and unilateral EVA, but found no mutations in KCNJ10. Mercer et al. [30] screened 51 patients with EVA and found no mutations in KCNJ10. Chen et al. [31] screened SLC26A4 and KCNJ10 in patients with bilateral deafness and inner ear malformations and found no mutations in KCNJ10 in the 15 patients who had one or no SLC26A4 mutations. This evidence concerns the gene SLC26A4 and deafness.