Huang W, Dai B, Wen Z, Millard RW, Yu X-Y, Luther K, Xu M, Zhao TC, Yang H-T, Qi Z, et al. Molecular Strategy to Reduce In Vivo Collagen Barrier Promotes Entry of NCX1 Positive Inducible Pluripotent Stem Cells (iPSC(NCX1+)) into Ischemic (or Injured) Myocardium. PLoS One. 2013;8(8):e70023.