... (Jilin province), Yin-chuan School for the Blind, Deaf and Dumb (Ningxia Province), Xining Spe-cial Education School (Qinghai province), Changan School for the Deaf and Dumb (Shaanxi province), ... groups in ChinaAs indicated in Table 2, the frequency of GJB2 mutationsvaries from 4% in Guangxi to 30.4% in Jiangsu. TheseAmino acid alignment of Connexin26 in different speciesFigure 2Amino ... for minorities in Xinjiang, testing of Caucasian c.35delG mutation shouldbe included. In patients with Maan ethnic background,sequencing of the GJB2 coding region should be offered,since the...