Development and application of key technologies of a novel early warning system for colorectal cancer basing on microbial characteristics

Interventions: Gold Standard:pathological examination;Index test:new colorectal cancer screening kit Primary outcome(s): Intestinal bacteria;Intestinal fungi;Intestinal virus Study Design: Sequential干预措施：金标准（Gold Standard）：病理学检查；待评价试验（Index test）：新型结直肠癌筛查试剂盒 主要结局指标：肠道细菌、肠道真菌、肠道病毒 研究设计：序贯设计