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http://health.nih.gov/
,(March, 2012)
2. H.R. Cooper, L.C. Craddock, Cochlear Implants—A Practical Guide (Whurr Publishers, London, 2006), pp. 1–20
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4. G. Clark, Cochlear Implants: Fundamentals and Applications, 1st edn. (Springer, New York, 2003)
5. Cochlear Implants for Hearing Loss-MED-EL
http://www.medel.com/
(March, 2013)