Hakan Widner, Karolinska Institutet (IMAGE) Karolinska Institutet Caption Hakan Widner, MD, PhD, is a Professor at the Faculty of Medicine, Lund University in Sweden. Credit Roger Lundholm Usage Restrictions This image may only be published/reproduced in connection to media reports about Hakan Widner, Lund University. 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.