After fibroblasts were replated, 99–100% of SR and AF cells expressed vimentin (SR: 292/292: AF: 253/255, n = 4 in both groups) and hFSP (SR: 282/282; AF: 234/234, n = 4 in both groups, Fig. 1D). The gene discussed is VIM; the disease is atrial fibrillation.