Niels Geijsen, Ph.D. (IMAGE) IOS Press Caption Niels Geijsen, Ph.D., as new Co-Editor-in-Chief of StemJournal. Credit <em>StemJournal</em> Usage Restrictions None 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.