Patrik Ernfors, Karolinska Institutet (image) Karolinska Institutet Caption Dr. Patrik Ernfors is a Professor of Molecular Neurobiology at Karolinska Institutet in Sweden. Credit Gustav Mårtensson Usage Restrictions This image may only be used i connection to media reports about research at Karolinska Institutet. 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.