原文是all 12 hESC lines derived from such arrested embryos have been 3 C8 k! Y, M, a- ^9 R. }* Jshown to be karyotypically normal and their pluripotency 5 S8 o/ b- w( uand differentiation potential has been demonstrated both in2 C4 K1 p) \* X4 u& x6 n
vitro and in vivo.