| aural atresia |
obstruction of the external acoustic meatus; it may be either congenital or acquired through trauma or disease.
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| aural atresia |
indicates the lack of an ear canal, ie, the development of the middle and outer ear proceeds independently of inner ear development.
출처: craniofacial.seattlechildrens.org/resources/glossa...
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