Objective:To study the regularity and significance of lymph nodes metastasis in rectal cancer below the peritoneum .

目的：探讨腹膜返折以下直肠癌淋巴结转移的规律及其临床价值。

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Objective:To study the regularity and significance of lymph nodes metastasis in rectal cancer below the peritoneum .

目的：探讨腹膜返折以下直肠癌淋巴结转移的规律及其临床价值。

youdao