by Jeff Hansen, University of Alabama at Birmingham TBX20 overexpression leads to functional improvement of hiCMs. A, Quantification of observed beating human induced cardiomyocytes (hiCMs) derived from H9-derived fibroblasts (H9Fs) after 1 month of co-culture with human induced pluripotent stem cell–derived cardiomyocytes (iPSC-CMs; n=10 for each group, repeated 2 times independently). B, Tracing and measurements...