To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Supplementary online Video 1 Beating cardiac cell formation from Esrrb-induced iPSCs upon EB formation at day 14. LIF-activated Jak signaling determines Esrrb expression during late-stage reprogramming Delun Huang, Ling Wang, Jingyue Duan, Chang Huang, Xiuchun (Cindy) Tian, Ming Zhang, and Young Tang Biology Open 2017. 7:None-None; doi: 10.1242/bio.029264 Download Original Video