 You take, you release your fingers and then of course it whistles and blows and makes funny noises as the air comes out of that balloon. CSF should be coming out of the brain and the spinal cord like that, not with that kind of speed, of course, but with a free flowing. But when that top bone twists, we found out, and we were surprised, we were looking at, we thought there was something else that caused the migraine. We were surprised to find out it was inhibited CSF flow. The study was written, hasn't been published yet, but it was written.