Per Hall, COGS research network (IMAGE) Karolinska Institutet Caption This shows Professor Per Hall, coordinator of the COGS research network, at his workplace at Karolinska Institutet in Stockholm, Sweden. Credit Gustav Mårtensson Usage Restrictions This photo may only be published together with reports about Karolinska Institutet and/or COGS. The photograoher must be credited. 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.