Sickled and Other Red Blood Cells (IMAGE) St. Jude Children's Research Hospital Caption This is a scanning electron micrograph of sickled and other red blood cells. Credit Wellcome images: EM Unit, UCL Medical School, Royal Free Campus Usage Restrictions Credit: EM Unit, UCL Medical School, Royal Free Campus 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.