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Is it true that when a new version of a nasalance measurement system is put on the market, it is necessary to duplicate previous evaluation studies?

April 26, 2017duplicate market measurement nasalance necessary previous system version

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Is it true that when a new version of a nasalance measurement system is put on the market, it is necessary to duplicate previous evaluation studies?

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It is not necessary for a newcomer to a field to replicate previous testing. It is only necessary to determine that the new system is essentially equivalent to, or better than, the old one in performance.