This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Audiogramma udito normale. pl Audiogram przedstawiajcy prawidowy such Audiogramma di una persona con udito normale Normalhearingaudiogram UTC Normalhearingaudiogram Marekp derivative work Anassagora talk Ceccomaster translation in Italian Anassagora Normalhearingaudiogram Own work by uploader Marekp Uploaded with derivativeFX