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Dammeyer J.Prevalence and aetiology of congenitally deafblind people in Denmark. Int J Audiol. 2010 Feb;49(2):76-82.

Deafblindness: dual sensory loss

What is dual sensory loss (deafblindness)? This is a combination of deafness/hearing impairment and blindness/vision impairment . The hearing loss is 35 dB or more, visual acuity is 0.30 or less and...

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