Ebba Du Rietz (IMAGE) Karolinska Institutet Caption Ebba Du Rietz, postdoctoral researcher at the Department of Medical Epidemiology and Biostatistics, Karolinska Institutet. Credit Karolinska Institutet Usage Restrictions This photo may only be used in connection to reports about Ebba Du Rietz'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.