My Doctor's Data tests were great and definitely not randomized.

I did the blood tests (prior to DMPS dump), and then 24 hr fecal/urine after DMPS. They were run through my doctor's office. I did not do the hair test, was expensive enough for the other 3 and I didn't want my hair to look chopped up. To me, it didnl't make sense to test hair too far from the root since mine was a current problem, and hair grown 6 or 7" out already would be from last year or older so that seemed rather useless.