但患病乳区以一个为主。

Sicken udder number only one.

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目的探讨内乳区前哨淋巴结活检的方法及意义。

Objective To evaluate the feasibility and significance of internal mammary sentinel node biopsy on breast cancer.

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组和2组隐性乳腺炎的乳区发病率差异不显著（P>0 05），与对照组差异极显著（P<0 01）；

The udder region incidence of the group 1 was not remarkable (against that) of the group 2 (P>0.05), and the incidence against control was significantly remarkable (P<0.01).

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