先天性双侧输精管缺如(congenital absence of vas deferens)或闭锁;
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congenital absence of vas deferens
先天性输精管缺失
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The issue was due to a not uncommon cause of infertility in men: Congenital Absence of the Vas Deferens.
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