Eva Hedlund Group (IMAGE) Karolinska Institutet Caption Jik Nijssen, Eva Hedlund, Julio Aguila Benitez, researchers at Karolinska Institutet, Sweden. Credit Ulf Sirborn Usage Restrictions This image may only be published/reproduced in connection to editorial media reports about Dr Eva Hedlund's research at Karolinska Institutet. The photographer must be credited. 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.