Regulators do not develop the standards of practice, on average. They rely on the specialty societies. People who do this, this is their expertise, but the regulator will say to these physicians that they need to bear in mind that the standard of practice is x. If they're going out of standard practice x, they will possibly need to tell us why.
You have to remember that it is the physician who is held accountable for the appropriate care for that individual patient at that individual time. It's a complex situation. I don't know how many subspecialties we have right now, but it's a lot. So you have to remember these patients are not your experimental pool of people.