原文是all 12 hESC lines derived from such arrested embryos have been 2 c; y9 o8 |0 P9 e( kshown to be karyotypically normal and their pluripotency* r; Q: U+ m7 C
and differentiation potential has been demonstrated both in 2 p6 L% ?2 ^5 H9 I1 d- Zvitro and in vivo.