Researcher (IMAGE) University of Georgia Caption This is Samantha Spellicy, graduate student of the Stice lab, performs a lab test on the therapeutic activity of exosomes. Credit Andrew Davis Tucker 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.