How many of these guys have we caught using a profile?

我们用侧写抓了多少这样的罪犯？

To find these subtle differences, researchers compare the breath of healthy people with the breath of people who suffer from a particular disease using profiles based on hundreds of breath samples.

为了发现这些细微的差异，研究人员使用了基于数百种呼吸样本的剖面图，将健康人的呼吸与患有特定疾病的人的呼吸进行了比较。