Partner-assisted reproduction (also known as reception of oocyctes from partner (ROPA)) is a family model first introduced in Spain in 2009. In partner-assisted reproduction, one woman provides the eggs, and the embryo is implanted into her female partner's womb. (As a technical matter, this technique does not differ from oocyte donation.) Using this process ensures that each partner is a biological mother of the child.
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Partner-assisted reproduction Wikipedia(Text) CC BY-SA