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材料与方法一、调查对象: 1、汉族:共1285人,非农业人口占大多数,多系城关二小学生,服务性行业职工,龙里林场场部职工及家属,并有少数城镇居民和非肝脏疾病的内、外科病人。 2、苗族:共584人,绝大部分为居住在高寒山区的民主公社社员,分布于十二个村寨,居住状况及卫生习惯均较差,交通不便,具有苗族生活习性的典型性。 3、布依族:共605人,绝大多数为处于平坝地区的羊场公社社员,分布于八个自然寨,居住条件及卫生习惯良好,具有布依族生活习性的典型性。
Materials and Methods 1. Subjects: 1. Han nationality: a total of 1285 people, with the largest proportion of non-agricultural population. They are mostly Chenggutuan primary school students, workers in service industries, employees and relatives of Longliulin field and a few urban residents and non- Liver disease in the surgical patients. 2, Miao: a total of 584 people, the vast majority live in the alpine mountainous areas of the Democratic commune members, located in 12 villages, living conditions and health habits are poor, inconvenient transportation, with Miao habits typical. 3, Buyi: a total of 605 people, the vast majority of sheep farm in Pingba commune members, located in eight natural villages, living conditions and good health habits, with the typical habits of Buyi life.