Per-Olof Berggren, Karolinska Institutet (IMAGE) Karolinska Institutet Caption Per-Olof Berggren, PhD, is a Professor of Experimental Endocrinology at Karolinska Institutet in Stockholm, Sweden. He is also a member of the Nobel Assembly at Karolinska Institutet. Credit Ulf Sirborn 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.