其中35例为十二指肠球部溃疡，12例为球后溃疡。

Among them, 35 had duodenal ampulla ulcer, 12 had duodenal ampulla posterior wall ulcer.

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其中35例为十二指肠球部溃疡，12例为球后溃疡。

Among them, 35 had duodenal ampulla ulcer, 12 had duodenal ampulla posterior wall ulcer.

youdao