Professor Per Hall, Karolinska Institutet (IMAGE) Karolinska Institutet Caption This is Professor Per Hall, who will be leading the breast cancer study in corporation with Professor Jonas Bergh. Credit Ulf Sirborn, Karolinska Institutet. 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.