The totally implantable hearing aid.
Pulec
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JL
D001294:Attitude to Health; D004059:Diffusion of Innovation; D006310:Hearing Aids / Q000592:standards* / Q000600:supply & distribution; D006801:Humans; D019736:Prostheses and Implants / Q000592:standards* / Q000600:supply & distribution; D014481:United States; D014486:United States Food and Drug Administration