毛滴虫病：一种毛滴虫引起的感染，是一种家畜牛的疾病，一般的结果是使被感染的母牛不孕或流产。
An infection caused by trichomonads, as a disease of cattle that commonly results in infertility or abortion in infected cows.
结论：不孕症中CD 44表达异常可引起内膜接受性的降低，使著床失败引起不孕。
Conclusion the anormal expression of CD44 in infertility will reduce endometrium's acceptation, which led to the failure of imbed.
不孕夫妇的生育权和代理母亲的身体权为代孕行为提供了合法性基础，代孕协议使代孕行为权利义务关系更加确定。
The sterile husbands and wifes child-bearing right and the agent mothers physical right provide the valid foundation for the behavior, which makes its rights and obligations relations more definite.
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