Although the screening of asymptomatic patients with immunochemical FOBT can identify patients with colorectal neoplasia to a certain extent, the sensitivity is relatively low and different according to the tumor location. Therefore, programmatic and repeated screening by immunochemical FOBT may be necessary to increase sensitivity for colorectal cancer detection.

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This study demonstrated risk factors for perforation and delayed bleeding associated with ESD. Furthermore, it was clarified that perforation and delayed bleeding influenced post-procedure results and prognosis after ESD.