Objective To investigate the expression and localization of HB EGF in human first trimester villi and decidua, and its significance in embryonic implantation and placental growth and development.

• 目的探讨肝素结合性表皮生长因子(HB-EGF)在早孕绒毛及蜕膜组织中的表达;评估HB-EGF在人类胚泡着床和早期胎盘组织发育中的作用。