... and 105 controls with normal hearing using a com-mercially available DNA extraction kit (Watson Bio-technologies Inc., Shanghai, China).Mutational analysis The coding exon (exon 2) and flanking ... TW,Radnaabazar J, Dangaasuren B, Tastan H, Nance WE, Pandya A: GJB2Mutations in Mongolia: Complex Alleles, Low Frequency, and ReducedFitness of the Deaf. Ann of Hum Genet 2010, 74:155-164.44. Matos ... 85(3):213-216.26. Mahdieh N, Nishimura C, Ali-Madadi K, Riazalhosseini Y, Yazdan H,Arzhangi S, Jalalvand K, Ebrahimi A, Kazemi S, Smith RJ, Najmabadi H: The frequency of GJB2 mutations and the Delta (GJB6-D13S1830)...