Ola Olén, Karolinska Institutet (IMAGE) Karolinska Institutet Caption This is Ola Olén, senior researcher at Karolinska Institutet's Department of Medicine in Solna, Sweden. Photo: Sjukhusfotograferna, SÖS. Credit Sjukhusfotograferna, SÖS Usage Restrictions The photo may only be used in connection to reports about Dr Olén's research. 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.