About 60 per cent of people with frozen embryos stored at United States fertility clinics would be willing to donate them for use in human stem-cell research, a survey shows.

一项调查显示，约有60%的人用冷冻胚胎贮存在美国生育诊所，他们将愿意捐赠胚胎用于人类胚胎干细胞研究。

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Reed soil fertility conditions in Hubei Province were compared and analysed, and the quality of reed soil resource was evaluated and graded through field survey and laboratory analyses.

利用野外调查和室内分析相结合对湖北省苇田土壤肥力状况进行了比较分析，并对全省苇田资源进行了生产力评价。

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Recent British Finl a joint survey found that high sensitive degree of nerve women or outgoing male fertility will be higher than normal people.

最近英国和芬兰的一项联合调查发现，神经敏感程度高的女性或性格外向的男性的生育能力会高于常人。

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The Infertility Network UK carried out an online fertility tourism survey, which produced some surprising results.

BBC: The cost of fertility treatment 'tourism'

If all women had this ability, survey data shows, average global childbearing would immediately fall below the 'replacement fertility' value of slightly more than two children per woman.

CNN: Africa's birth rate: 'Why women must be free to choose'