Patrik Ernfors (image) Karolinska Institutet Share Print E-Mail Caption Patrik Ernfors, PhD, Professor at the Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Sweden. Credit Gunnar Ask Usage Restrictions This image may only be used in connection to media reports about Patrik Ernfors' research at Karolinska Institutet. The photographer must be credited. 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.