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为了探索丙型病毒性肝炎在原发性肝癌病因学上可能存在的作用,我们最近进行了一项潜伏性病例一对照研究。研究材料均为1982年以来开展的两次定群研究对象的贮藏血清标本。以定群研究历次随访确定的原发性肝癌死者为“病例”。“匹配对照”则选自末次随访尚存活且无肝癌表现者,年龄与
To explore the possible role of hepatitis C in the etiology of primary liver cancer, we recently conducted a case-control study of latent disease. The research materials were all stored serum samples from two sub-population study subjects since 1982. The study group to determine the follow-up of patients with primary liver cancer were “cases.” “Matching control” is selected from the last follow-up survived and no liver cancer who show, age and