乙型肝炎表面抗原-这直接测试是否存在病毒。
Hepatitis B surface Antigen - this tests directly for the presence of virus.
目的：研究乙型肝炎表面抗原携带者及其子女间的遗传传递。
Objective: to study genetic transmission from the parents with HBsAg to their children.
目的：研究乙型肝炎表面抗原携带者及其子女间的遗传传递。
Objective: to study genetic transmission from the parents with HBsAg to their children.
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