Niklas Mattsson, University of Gothenburg (IMAGE) University of Gothenburg Caption Niklas Mattsson is a specialty registrar in clinical chemistry and doctoral student Institute of Neuroscience and Physiology Sahlgrenska Academy, Gothenburg University. Credit Anna Hallin 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.