To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 4 Real-time 3D visualization of cellular rearrangements during cardiac valve formation Jenny Pestel, Radhan Ramadass, Sebastien Gauvrit, Christian Helker, Wiebke Herzog, and Didier Y. R. Stainier Development 2016. 143:2217-2227; doi: 10.1242/dev.133272 Download Original Video