Christian Hedberg, Umea University (image) Umea University Share Print E-Mail Caption This is a portrait photo of Christian Hedberg, Department of Chemistry at Umeå University in Sweden. Credit Falk Sieland Usage Restrictions This photo may only be used in texts related to this press release. Share Print E-Mail 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.