Urinary Extracellular Vesicles (IMAGE) University of Turku Caption Electron microscopy image of the urinary extracellular vesicles studied. Credit Pekka Rappu, University of Turku 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.