结果50例结肠扩大切除术的患者没有一例被诊断出患有异时性结直肠癌（发病率0.0；
Results None of 50 subjects who had extensive colectomy was diagnosed with metachronous CRC (incidence rate 0.0;
结果50例结肠扩大切除术的患者没有一例被诊断出患有异时性结直肠癌（发病率0.0；
Results None of 50 subjects who had extensive colectomy was diagnosed with metachronous CRC (incidence rate 0.0;
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