Actually, they're more just a representative sample of some of the international flavour, but I would tell you that the Wake Forest University study at the bottom was a human study on 1,000 taser applications in the real world use. Dr. William Bozeman presented that.
The study above that is by Dr. Ted Chan at the University of California, San Diego. He's performed three or four different studies. They looked at breathing. They looked at the acidosis question.