Objective to evaluate clinic value of Color Doppler Sonography predicting high danger situation in esophageal varicose hemorrhage related to cirrhosis of liver.

目的评价彩色多普勒超声预测肝硬化食管静脉曲张出血高危状态的临床价值。

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Recognising the potential danger of that situation, governing body the FIA has said that all laps in qualifying must be completed within a specified percentage of a driver's fastest time.

BBC: Bahrain qualifying - as it happened

In a statement, Italy's Prime Minister Mario Monti thanked all those who had "enabled a positive outcome of this affair, which was made all the more complicated by the extreme danger of the situation".

BBC: Ruined buildings in Marjeh, northern Syria (11 April 2013)

The amount of assets under management is important because an ETF with low levels could be in danger of closing, a situation investors want to avoid.

FORBES: Building An All-ETF Portfolio