The researchers said those with the highest level of cortisol were five times more likely to die from cardiovascular causes than those with the lowest levels.

VOA: special.2010.10.12

Times were different in those days.

程序运行了很长时间然后停止了。

麻省理工公开课 - 计算机科学及编程导论课程节选

Another thing is that most patients - And of those who were tested, only a small number were positive, even though the researchers tested 30 times more people than would normally be tested for HIV.

VOA: standard.2010.07.23