I'll make two very short comments. One is that any advance directive should be restricted by time. When I assisted the legislation of the Israeli law, we set up a framework whereby people could renew the living will or advance directive every five years. That's the first comment.
Second, Dr. Fry, you have put a lot of emphasis on the autonomy of the patient, as do I. The question that we have to ask ourselves is, what happens when autonomy ceases? My answer is that if autonomy ceases, there's no euthanasia, because there's no autonomy. That's a very simple sort of a border that we have to draw.