作者单位:Division of Pediatric Cardiology, Department of Pediatrics (M.Z., D.B.), Stanford University School[1]Institute for Stem Cell Biology and Regenerative Medicine (A.N., T.C., K.M.G., L.T.A., K.L., K.R.-H[2]Department of Biology, Stanford University, CA (B.R., I.W., P.E.R.C., X.F., A.H.C., R. Roth, E.T.,[3]