Methods Current status of hepatocyte directed gene transfer vectors were reviewed by history document and contemporary experimental advances analysis.

方法采用文献回顾的方法并结合当前实验研究，对肝细胞基因转导载体系统的研究和应用进展加以综述。

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In this paper, the current status of research on Nb-based alloys' resistance to high temperature oxidation is reviewed, including recent advances and existing problems in this area.

综述了铌基合金抗高温氧化性研究的现状，并且对铌基合金抗高温氧化性研究的进展及存在的问题进行了阐述，提出了解决铌基合金抗高温氧化问题的可能途径。

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The current status, development prospects, research advances and current hotspot in the field of maternal and child health care will be introduced in the course.

本次课主要介绍近年来国内外妇幼保健研究概况、热点研究内容、妇幼保健发展趋势等。

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