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Cumulative failure percentages for the 4 generations of Nucleus receiver-stimulators, all recipients worldwide as of June 30, 2006, adults and children separately: (A) CI22M, (B) CI24M (all models and after modification), and (C) CI24R and CI24RE. Error bars show the 95% confidence intervals. Note the y-axis for (A) is twice that of (B) and (C).(Image by permission of Cochlear Limited)
