- A novel locus for autosomal dominant, non-syndromic hearing impairment (DFNA18) maps to chromosome 3q22 immediately adjacent to the DM2 locus. Bönsch, D., Scheer, P., Neumann, C., Lang-Roth, R., Seifert, E., Storch, P., Weiller, C., Lamprecht-Dinnesen, A., Deufel, T. Eur. J. Hum. Genet. (2001)