Hereditary background of auditory impairment; laboratory detection of heterozygotes of deafness; a Békésyaudiometric examination of parents with children deaf from birth.
D002648:Child; D003638:Deafness; D006311:Hearing Disorders / Q000235:genetics*; D034381:Hearing Loss; D006320:Hearing Tests; D040941:Heredity; D006579:Heterozygote; D006801:Humans; D010290:Parents
HEARING DISORDERS/heredity; HEARING TESTS