广播电视英语短句 第 137 课：医院的病人-2

They also included accidents with the use of drugs in medical procedures or operations. 也包括医疗过程或手术中用药发生的意外事故.

The researchers found that these mistakes caused ten percent more deaths in July than in other months. 研究人员发现，7月的这些失误引起的死亡率与其他月份相比高出10%。

They found no similar link for other causes of death or for deaths outside hospitals. 而他们也发现医院其他的死亡或医院外的死亡则没有类似的联系。

But what makes July so deadly? The professor and his student believe they know. 那么是什么使得7月的死亡率如此高呢? 教授和他的学生确信他们知道的。

They found that this ten percent increase only happened in counties with teaching hospitals. 他们发现这突增的10%的死亡率都只发生在设有教学医院的地方。