Sickle Cell (IMAGE) Dana-Farber Cancer Institute Caption This image shows sickle cell. Credit <a target="_blank"href="https://www.flickr.com/photos/wellcomeimages/5814149517/">EM Unit, UCL Medical School, Royal Free Campus</a> Usage Restrictions Respect the Creative Commons license: <a target="_blank"href="https://creativecommons.org/licenses/by-nc-nd/2.0/">CC BY-NC-ND 2.0</a> License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.