nidation

1.Ectopic Pregnancy is the nidation and development of the amphicytula out of the cavitas uteri .

（孕在子宫腔以外部位床、发育，宫外孕。

2.Embryo nidation is a complex and sequencing physiological processes.

胚胎床是复杂程生理过程。

3.Abstract: Embryo nidation is a complex and sequencing physiological processes.

胚胎床是复杂程生理过程。