Hannes Hagström (IMAGE) Karolinska Institutet Caption Hannes Hagström, associate professor at the Department of Medicine, Karolinska Institutet (Solna and Huddinge), Sweden. Photo: Ulf Sirborn Credit Ulf Sirborn 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.