Dr. Sven Pettersson, Karolinska Institutet (image) Karolinska Institutet Share Print E-Mail Caption Sven Pettersson, Ph.D., is a professor at Karolinska Institutet in Stockholm, Sweden. Credit John Sennett Usage Restrictions May only be published/reproduced in connection to media reports about the research of Dr Sven Pettersson at Karolinska Institutet. Share Print E-Mail 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.