Jesper Lagergren, Karolinska Institutet (IMAGE) Karolinska Institutet Caption Dr. Jesper Lagergren and his colleagues investigated the learning curve for surgeons operating on oesophageal cancer. Credit Karolinska Institutet Usage Restrictions This image may only be published/reproduced in connection to editorial reports about Jesper Lagergren's research. 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.