Objective to investigate the severity and relative risk factors of aortic arch atherosclerosis (AAA) in patients with cerebral embolism.

目的探讨脑栓塞患者的主动脉弓动脉粥样硬化(AAA)严重程度及其有关的危险因素。

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Many factors involve the progress in coronary heart disease. The article discusses the relative risk factors to coronary heart disease in women.

冠心病的发病因素较多，本文重点讨论影响女性冠心病发生的相关危险因素。

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Objective to study the situation of iatrogenic infection of hemodialysis of uremia patient and discuss the relative risk factors and its prevention.

目的了解尿毒症血透患者并发医院感染情况，探讨其相关的危险因素及预防措施。

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"The risk factors include the dimensions of the structure, its location and its location relative to other buildings around it, " explains Matthew Waldrum from Omega Red Group, who assesses the risk of lightning hitting buildings.

BBC: What is the chance of lightning striking St Peter's?

Several factors have conspired to push risk assets even higher including extraordinary support by the Bernanke Fed, relative calm in Europe, and diminished political uncertainty in Washington.

FORBES: S&P 500 Closes At Record High As U.S. Stocks Fire On All Cylinders