Perhaps I can add something to that.
In the federal panel's report, there is quite a discussion about terminology, and that would be a very good place to start to read about the various people who have come before the federal panel to discuss the distinctions in terminology. A lot of them come down to how people feel they are going to impact on the medical profession or how they feel they might impact on the relationship between the patient and the doctor. They do a very nice job of laying that out.