Maybe I should show you now how much urea I have at one time removed from one patient. There was a patient who was comatose, absolutely comatose. He was a big man. And, this white powder is urea, and all this urea was removed in one dialysis, which is incredible, isn’t it? It goes very fast. And, in the beginning there were always people that said, “Well, urea is not toxic.” I would say, “Eat it, and see how you feel.”