Objective To investgate the treatment of asthenospermia and necrospermia infertility with percutaneous vasal sperm aspiration ( PVSA) and intrauterine insemination ( IUI) .
目的用经皮穿刺输管吸(PVSA)行腔内人工授(IUI)的方法治疗极症或死症不育患者。
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Other animals, as well as humans, have been successfully bred through artificial insemination, but perfecting the process in dogs took decades because of the critical timing in fertilization of the female dog's eggs.
对于其它物种以及人类来说,人工受精已经非常成熟,但对于狗来说,由于对卵细胞的受精时间有着非常高的要求,所以对于狗的人工受精研究持续了数十年的时间。