Objective To study the infection rate of HBV and HCV in patients with primary hepatic carcinoma (PHC) or other malignant tumour.
目的：研究原发性肝癌与其他恶性肿瘤患者HBV及H CV感染率。
Objective to investigate neonatal infection rate of HBV through paternal-fetal transmission (P-FT), and to explore method to prevent the neonate from HBV P-FT.
目的观察新生儿乙型肝炎病毒经父婴传播的感染率，探讨预防乙型肝炎父婴传播的方法。
AIM To analyze the difference of intrauterine infection rate in different periods of pregnancy and to determine the timing of HBV intrauterine infection.
目的分析不同孕期乙型肝炎病毒宫内感染率的差异，探索HBV宫内感染发生的时间。
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