Airway After Severe Injury (IMAGE) Duke University Medical Center Caption This photo shows the same airway after a severe chemical injury that wipes out the normally present cells and activates stem cell mediated repair (clonal patches). Credit Cancer Research UK Usage Restrictions None 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.