Dr. Ahmad Alsahaf (IMAGE) University of Groningen Caption This is dr. Ahmad Alsahaf, a postdoctoral researcher at the University Medical Centre Groningen and the first author of the paper. Credit University of Groningen Usage Restrictions Credit must be given to the creator. License CC BY 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.