So were chromosomal deficiency or reproduction, and unequal division in the period of pollen mother cell.
花粉母细胞染色体数不恒定，后期两极染色体数分配不均等。
Conclusion: Chromosomal analysis should be carried out routinely in couples with unexplained failure of reproduction.
结论对于不明原因的自然流产夫妇，染色体分析应作为常规的检测方法。
Conclusion: Chromosomal analysis should be carried out routinely in couples with unexplained failure of reproduction.
结论对于不明原因的自然流产夫妇，染色体分析应作为常规的检测方法。
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