前言：目的探讨人类胚胎干细胞的研究进展和应用前景。

Objective: To approach advance of researching the human embryonic stem cell.

youdao

前言：目的探讨人类胚胎干细胞的研究进展和应用前景。

Objective: To approach advance of researching the human embryonic stem cell.

youdao