Methods Survey objects were determined by chester and stratified samplings,andthe HBsAg, anti -- HBs, anti -- HBc and HBeAg were tested by hemospaisia.
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美
释义
方法整群、分层抽样确定调查对象,抽血检测HBsAg、抗-HBs、抗-HBc、HBeAg。
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