Overlay of Electron-Density Maps (image) International Union of Crystallography Caption This is an overlay of electron-density maps calculated from the final crowdsourced phase solutions and the true phases for the two test cases. Credit Jorda et al. Usage Restrictions None 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.