if you ease use ge healthcare, that would make you feel better about the position itself, do you findugh to own? >> for certain. we are probably the largest customer that ge has. although, we use all of the other oems. siemens, phillips, but i have been a big fan of ge since i started the company. and they continue to evolve. i think the fact that they got spun off from the mothership earlier this year has definitely been a benefit, not only for ge, but really for the innovation, which i think they are now freer to do, and which will accelerate some of the changes in the technology. >> that is great, one of the largest, and i know we're on the right track, because you are in the business. now, you got a huge number of centers. your in certain states, which is very clear that you got critical mass to work with certain organizations. but what i thought was incredibly interesting is that when you have these done in a hospital, they can be much more expensive than when you do them., which is incredible. how does that work? well, i think that is part of the legacy that we are all living wi