原文是all 12 hESC lines derived from such arrested embryos have been / P* F& @: H- |3 ]4 Y& Lshown to be karyotypically normal and their pluripotency; E8 S& l% I& c6 S S% V+ C/ ^6 J
and differentiation potential has been demonstrated both in1 R# S" q; N6 N5 `; R
vitro and in vivo.