There's a procedure. The procedure is a diagnostic procedure, and that's a very important one because it's another major issue. We really don't know what the best approach is to diagnose this condition. Is it, as Dr. Zamboni claims, ultrasound imaging? Is it venography? Is it nuclear magnetic resonance imaging?
What these projects are doing is comparing the various techniques. Most of them use, as a baseline, the ultrasound approach done by Dr. Zamboni to try to at least reproduce these results. Most of them, actually, have sent their technicians to Buffalo to get the proper training to read these Dopplers in the same way as Zamboni did, and that's their baseline. They're comparing that with venographic studies, and in some cases NMR studies.
We want to establish the best possible approach to diagnose the condition, so when there's a trial in phase two we know exactly what the perfect, true inclusion criterion is and what the standard used in terms of diagnosis will be.