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为了解人群携带HBsAg的动态变化及其转归,1983年我们在南昌市和丰城县对1979年肝炎流行病学调查出来的HBsAg无症状携带者和HBsAg阴性健康者按1∶1配成302对进行调查研究,并对HBsAg阳性
In order to understand the dynamic changes of population carrying HBsAg and its prognosis, in 1983 we in Nanchang City and Fengcheng County in 1979 hepatitis epidemiology survey of HBsAg asymptomatic carriers and HBsAg-negative healthy population by 1: 1 302 To conduct a survey, and positive for HBsAg