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Copyright Policy

Unless otherwise stated, the texts, graphics, videos, illustrations and other information on the National Human Genome Research Institute (NHGRI) website are in the public domain New Window . Public domain information may be freely distributed and copied; however, as a courtesy it is requested that NHGRI be given an appropriate acknowledgement such as: "Courtesy: National Human Genome Research Institute" with a link back to our homepage if used online.

Copyrighted text - usually scientific publications resulting from institute activities - is published on from time to time with the permission of the copyright holder. Unless otherwise noted, website users are free to view and print these documents. If copyrighted, material will carry a credit line indicating that it did not originate at NHGRI. In this case, please be sure to cite the correct copyright owner. For information about these copyright owners, how they can be contacted, and what, if any, use those owners allow of their material beyond that which is stated here, please contact us through our Questions and Feedback page.


  • Endorsement: Using a graphic, photo or illustration from does not explicitly or implicitly convey NHGRI's endorsement of the site where it is used. NHGRI does not endorse or recommend any commercial products, processes or services. The views and opinions of authors expressed on do not necessarily state or reflect those of the U.S. Government, and they may not be used for advertising or product endorsement purposes.
  • External Links: Except where explicitly stated, NHGRI is not responsible for the availability or content of external websites, nor does NHGRI endorse, warrant or guarantee the products, services or information described or offered at these other Internet sites. It is the responsibility of the user to examine the copyright and licensing restrictions of linked pages and to secure all necessary permission. Users cannot assume that the external sites will abide by the same provisions as the NHGRI Copyright Policy. Please read our full external link disclaimer for more information.
  • Liability: For documents and software available from this server, the U.S. Government does not warrant or assume any legal liability or responsibility for the accuracy, completeness or usefulness of any information, apparatus, product or process disclosed.


If you have any questions regarding the reproduction or use of any NHGRI text, graphics, photos or illustrations please direct them to:

Communications and Public Liaison Branch
National Human Genome Research Institute
Building 31/4B09
31 Center Drive
9000 Rockville Pike
Bethesda, MD 20892

Phone: (301) 402-0911
Fax: (301) 402-2218
E-mail: Questions and Feedback

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Last Reviewed: April 4, 2014