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.
The MeyerOverton correlation. en The MeyerOverton correlation for anesthetics Own work by uploaderbr modified from archive org anes upmc edu html anes upmc edu html Akuznetsova public domain graph Anesthesia History of medicine Hans Horst Meyer
Page 2023 Free-images.com. All images are Public Domain