George S. Barrett
Analyst · John Ransom of Raymond James
Yes, so as I'm going to give you, of course, an answer. You're going to hate it because it's going to be quite general, but I think we'll have to go with that. Which is, right now, we're competing very effectively and I like where we are. You can imagine that we're not sitting still. We have a pretty broad-based knowledge base of what's happening in markets around the world. There's very little that we don't explore. So as I mentioned, I think we are well positioned, but we are going to stay very open-minded about new ways to create value and -- but that has to be real value for customers and our suppliers and, obviously, for our shareholders. So we'll -- I guess, what I would say is, I think there are chess pieces always available and we'll keep our hands on those chess pieces. But we'll deploy capital with an open mind, but I'd say, with sort of a disciplined hand, always conscious of making sure that we're in the most competitive position. I know it's a very broad answer, but that's the best I can do for now.
John W. Ransom - Raymond James & Associates, Inc., Research Division: Okay. That's fine. And then shifting into a little more of a micro topic. How far -- if you look, say, 5 years out in the U.S. and think about cost containment pressures intensifying, how far off the value curve do you think, let's say, off-brand devices could get to? I mean, could we start talking about the equivalent of generic knees and hips and things like that, or do you think there's a limit to what can be done there?