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本文对常德县1970～1987年18例7552自杀死亡资料,进行流行病学分析。结果如下。资料来源: 人口资料来自县公安局、统计局、档案
In this paper, epidemiological analysis of 18 cases of 7552 suicide deaths in Changde County from 1970 to 1987 was carried out. The result is as follows. Source: Population data from county public security bureau, statistics bureau, archives