1. 2A.Q. Summerfield, and D.H. Marshall (1995 ). Cochlear Implantation in the UK 1990-1994. Report by the MRC Institute of Hearing Research on the evaluation of the national cochlear implant programme. HMSO, London
2. 3National Institutes for Health (NIH) Consensus Development Conference Statement Online (1995 ). Cochlear Implants in Adults and Children, Vol. 13, 1 -30
3. Cost-Utility of the Cochlear Implant in AdultsA Meta-analysis