Term Name:	X-linked deafness 4
Synonyms:	DFN6, DFNX4, nonsyndromic sensorineural progressive deafness 6, X-linked progressive deafness 6
Definition:	An X-linked nonsyndromic deafness characterized by progressive hearing loss with postlingual onset and earlier onset in males compared to females that has_material_basis_in mutation in the SMPX gene on chromosome Xp22.12.
Ontology:	Human Disease [DOID:0111735]   ( DOID:0111735 )