I had to have a complete liver transplant.
Well, I know how the system works. I know that there's something called the MELD system, which is nationwide. There are zones as far as evaluation of need for liver transplants.
The Wright brothers' first flight was shorter than a Boeing 747's wing span. We've just begun with heart transplants.
The brain isn't like the heart. They learned how to transplant a heart. The brain is more complex.