Kaj Blennow, Henrik Zetterberg (IMAGE) University of Gothenburg Caption Prof. Kaj Blennow and Prof. Henrik Zetterberg, Sahlgrennska Academy, University of Gothenrburg Credit Photo by Johan Wingborg, University of Gotheburg 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.