Asa Tivesten (IMAGE) University of Gothenburg Caption Asa Tivesten, senior physician and professor of medicine at Sahlgrenska Academy, University of Gothenburg. Credit Photo by University of Gothenburg 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.