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.
Laesionskoerper Porenvolumen.tif Lsionskrper own Own photo Kariesinfiltration Own work all rights released Public domain Unidentified chemical diagrams
Page 2023 Free-images.com. All images are Public Domain