2024-05-182024-05-18https://scholars.lib.ntu.edu.tw/handle/123456789/715945Colorectal cancerdiverticular diseasesinflammatory bowel diseaseshemorrhoidsanal abscess and fistulachronic constipationcolonoscopyColorectal cancerdiverticular diseasesinflammatory bowel diseaseshemorrhoidsanal abscess and fistulachronic constipationcolonoscopy