问题描述：
英语翻译
To donate some of these fresh embryos to research rather than freeze them for future use could necessitate an additional cycle of ovarian hyperstimulation and egg retrieval if a woman needs to try another cycle of IVF.Therefore,all embryos that are created and are viable for transfer should be implanted or preserved for future use.
To donate some of these fresh embryos to research rather than freeze them for future use could necessitate an additional cycle of ovarian hyperstimulation and egg retrieval if a woman needs to try another cycle of IVF.Therefore,all embryos that are created and are viable for transfer should be implanted or preserved for future use.
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