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国际上公认癌症在正式普查前应有一个简单的筛选方法，筛选出高危人群，再进一步精查确诊，可以节省时间和资源。根据以上情况，我们将人体器官分为三大类：一是体表器官，患癌机率占人体癌的15％上下ZH是空腔器官，患癌机率占人体瘤的历％上下；三是深层实体器官癌约占20％。?
It is recognized internationally that there should be a simple screening method for cancer before the official census to screen out high-risk groups. Further investigation and diagnosis can save time and resources. Based on the above conditions, we divided the human organs into three categories: First, the body surface organs, the cancer rate accounts for 15% of the human body cancer. ZH is a hollow organ, the chance of suffering from cancer accounted for the calendar of human tumors; the third is deep Solid organ cancer accounts for about 20%. ?