胎盘早期剥离NOS
Premature separation of placenta unspecified
重度胎盘早剥
severe placental abruption
胚胎早期发育
early embryonic development
胎盘胎膜残留
Retained placental fragment
retained placenta
孕早期胎停育
spontaneous abortion during the first trimester
晚Campanian期—早Maastrichtian期