Chen Y, Zeng D, Ding L, Li X-L, Liu X-T, Li W-J, Wei T, Yan S, Xie J-H, Wei L, et al. Three-dimensional poly-(ε-caprolactone) nanofibrous scaffolds directly promote the cardiomyocyte differentiation of murine-induced pluripotent stem cells through Wnt/β-catenin signaling. BMC Cell Biol. 2015;16(1):22.