Inherited hearing impairment can occur either in the presence of other
clinical features (syndromic hearing loss, SHL) or in isolation (non-
syndromic hearing loss, NSHL), The latter is more common and is highly
heterogeneous, To date, six NSHL loci have been mapped, We report the
identification of a seventh locus (DFNA4) on chromosome 19q13 and sug
gest DM kinase as a possible candidate gene.