Mitochondrial disease (IMAGE) University of Helsinki Caption Electron micrograph of the muscle of a patient with mitochondrial disease. Credit Eija Pirinen; A. Wartiovaara's research group Usage Restrictions The image may only be used with appropriate credit. 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.