伯南克和他的前任，阿兰·格林斯潘，在这场危机之前均认为泡沫在破碎前难以识别。

Mr Bernanke and his predecessor, Alan Greenspan, argued before the crisis that bubbles are hard to identify before they burst.

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两组发生副作用的病例数均较少，水蛭素组胃肠道不良反应的发生率也显著低于潘生丁组（P<0.05）。

Few side effects were found in both groups, and the rate of adverse reaction in gastrointestinal tract was lower in hirudintreated group as compared with that in dipyridamoletreated group (P<0.05).

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