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Sincethetwoindependentdiscoveriesin 1987indi catedthathaircellswithincochleaofbirdswerecapableofspontaneousregeneration ,recentobse
Since the joint independence disciscoveriesin 1987indi catedthathaircellswithincochleaofbirdswerecapableofspontaneousregeneration, recentobse