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近２０年来，重庆市未对肝癌病因因素进行过系统的多因素研究，缺乏肝癌防治所需的病因学资料。本研究的目的就是通过病例对照调查，采用多因素分析方法对重庆市肝癌病因进行较系统的研究，为确定肝癌的预防策略提供依据。１材料与方法 研究对象根据全国肝癌协作会议制定的诊断
In the past 20 years, Chongqing has not carried out systematic multifactorial studies on the etiological factors of liver cancer, and lacked the etiological data required for the prevention and treatment of liver cancer. The purpose of this study is to conduct a more systematic study of the causes of liver cancer in Chongqing through case-control investigations using multivariate analysis methods to provide basis for determining the prevention strategies of liver cancer. 1Materials and methods The subjects were diagnosed according to the national liver cancer collaboration meeting.