Multimedia (Images, Video and Audio)

Copyright: Images posted to the NIH Image Gallery are considered free-to-use with credit. However, read the copyright permissions for each collection.

Copyright: All pictures are published under Creative Commons Public Domain deed CC0. You can copy, modify, distribute and use the images, even for commercial purposes, all without asking permission and without paying attribution. However, depicted content may still be protected by trademarks, publicity or privacy rights.
https://pixabay.com/en/service/faq/

Copyright: If you look directly beneath the image you will see a fair use statement that tells you if the image is public domain or copyright protected. mages are either "Public Domain" (free use) or "Copyright Protected" (restricted, obtain permission before use). Permission is not required for public domain images, but we do ask that you credit the original institution and contributor, when known, whenever the image is used in any publicly distributed media. If the image is copyright protected, you will have to contact the content provider to obtain usage permission. PHIL does not have the authority to grant usage for any copyrighted images in the library. If you have difficulty contacting a content provider, we may be able to help, but we cannot act on their behalf.

Copyright: NLM does not hold the copyright for any of the material in PMC and cannot grant others permission to reuse or reproduce any of it (see PMC Copyright Notice ). Many articles in PMC have a license (e.g., a Creative Commons license) that explicitly allows some degree of reuse or redistribution of the content. The licenses vary in what they allow; you need to determine whether a particular license permits the type of use you want to make. NLM cannot interpret the licenses for you. If an article has standard copyright protection and no special license, or if you are unsure of what the license allows, you should contact the respective journal publisher for permission.
http://www.ncbi.nlm.nih.gov/pmc/about/faq/#q20

Copyright: copyright permissions are described below each image.