This article mainly reviews the features of SAN pace-making gene HCN4 in relation to SAN function.

现就窦房结细胞起搏基因hcn4的特性及其与窦房结功能之间的关系作进一步研究和探讨。

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Objective: To summarize the techniques of endocardium pace-making at the bed with ari cell electrode.

目的：总结气囊电极床旁心内膜临时起搏治疗技术。

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Recent studies show that human SAN pace-making gene HCN4 mutations are closely associated with sick sinus syndrome.

近年来有较多研究表明，人窦房结起搏基因HCN4突变与病态窦房结综合征密切相关。

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Across Europe, sentiment towards cross-border deals appears to be souring, just as the pace of deal-making gathers pace.

ECONOMIST: Closing the borders to business | The

As the conversation drew to a close, Mr. Eastwood, who has not slowed his four-decade-long pace of making about one film per year, touched on the subject of retirement.

WSJ: Conserving the Horse He Rode in On

Last week, Ford announced that the 2012 Focus Electric would be the pace car at the Richmond 400, making it the first all-electric pace car to ever lead the field for a NASCAR Sprint Cup Series race.

ENGADGET: Inhabitat's Week in Green: ten earth activities, transnatural stools and wood ash bike frames