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我们用吞水音图法，自1991年4月至1992年6月，对40岁以上无症状人群进行了食管癌贲门癌普查，取得了较为理想的结果，现报告如下。一、对象及方法（一）普查对象：根据太行山食管癌高发区呈不规则同。已圆分布的特点，选择河北省的涉县、武安阳邑镇、邯郸通二煤矿、邢台浆水镇
We used the water-sweeping audiogram method to conduct esophageal and cardiac cancer screening for asymptomatic people over the age of 40 from April 1991 to June 1992, and achieved satisfactory results. The report is as follows. I. Objects and methods (1) Subjects for census: According to Taihang Mountain, the high incidence area of esophageal cancer is irregular. The characteristics of the circle have been distributed. They are selected from Shexian County of Hebei Province, Yangshuo Town of Wuan County, Qiongtong Second Coal Mine, and Xingtai County