Hildur Helgadottir, Karolinska Institutet (IMAGE) Karolinska Institutet Caption This is Hildur Helgadottir, researcher at the Department of Oncology-Pathology, Karolinska Institutet, Sweden. Photo: Private. Credit Private Usage Restrictions The image may only be used in connection to reports about Dr Helgadottir'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.