1 文書を見つけるための辞書。

• placenta previa
• 前置胎盤
• pregnancy in which the placenta is implanted in the lower part of the uterus (instead of the upper part); can cause bleeding late in pregnancy; delivery by cesarean section may be necessary
• 胎盤が子宮（上部の代わりに）の下部に着床する妊娠