NHLBI Copyright and Use of Materials Policy

The information contained in materials published by the National Heart, Lung, and Blood Institute (NHLBI) is in the public domain. No further permission is required to reproduce or reprint the information in whole or in part. However, organizations that reproduce NHLBI publications should cite the National Heart, Lung, and Blood Institute, National Institutes of Health, U.S. Department of Health and Human Services as the source. This applies to print publications, graphics, and animations in the NHLBI Diseases and Conditions Index as well as documents and content from the NHLBI Web site. Organizations may add their own logo or name. The NHLBI further asks that no changes be made in the content of the material, and that the material, as well as any NHLBI Internet links, are not to be used in any direct or indirect product endorsement or advertising.

We Can!®, The Heart Truth®, COPD: Learn More Breathe Better®, and Keep the Beat™ are trademarks of the U.S. Department of Health and Human Services (HHS).