Opinions of hearing parents about the causes of hearing impairment of their children with biallelic GJB2 mutations - Aisen V. Solovyev; Lilya U. Dzhemileva; Olga L. Posukh; Nikolay A. Barashkov; Marita S. Bady-Khoo; Semen L. Lobov; Natalya Yu. Popova; Georgii P. Romanov; Nikolay N. Sazonov; Alexander A. Bondar; Igor V. Morozov; Mikhail I. Tomsky; et al. (Journal of Community Genetics, 2017)