Åsa Keita, Linköping University (image) Linköping University Share Print E-Mail Caption Åsa Keita, Linköping University, Sweden. Credit Thor Balkhed/LiU Usage Restrictions May only be used with proper credit and caption. 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.