Photo of Researchers (image) Karolinska Institutet Share Print E-Mail Caption From left: Giulia Grande and Debora Rizzuto, study authors and researchers at Karolinska Institutet. Credit Stefan Zimmerman. Usage Restrictions None 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.