Some questions about an implantable hearing instrument.
D000818:Animals; D001674:Bioelectric Energy Sources; D003638:Deafness / Q000628:therapy*; D006168:Guinea Pigs; D006310:Hearing Aids / Q000295:instrumentation; D006801:Humans; D008722:Methods; D019736:Prostheses and Implants; D013016:Sound; D014159:Transducers