原文是all 12 hESC lines derived from such arrested embryos have been( B" L- g, x5 b/ e
shown to be karyotypically normal and their pluripotency- e/ }/ ~: M+ E, [- B8 U; q4 p
and differentiation potential has been demonstrated both in 0 H1 R0 B# t8 V! @vitro and in vivo.