Robert Maurice Powell
Analyst
Okay, Martin. Thank you. What I would say in terms of the GEP and cost, I would say to you that we're looking at generally some cost that we incurred in '15, and then we will have some spillover of that to '14, and then we should be able to go beyond that on most of the projects. There were a couple of projects that will be in a different ballgame than that, and we can probably give you a little more clarity on that in the Capital Markets Day. But to give you a little bit of sense, think in terms of in 2013, the cost that we incurred somewhere in the $15 million, $18 million range, if that helps you there. Relative to pilots, I don't really have anything new to add on MIRCERA, and we've continued for this to be a theoretical discussion about when we would perhaps do a pilot. What I can tell you is that we know how we would do it, we're prepared to be able to do it I think, as Mike commented earlier. So we feel comfortable that when that opportunity should arise that we could take advantage of it on a theoretical basis, if you will. In terms of Renagel and Renvela, I agree with you. Those are products that are well used. As you know, they're not used through the clinic. They are really used through individual sales initiatives and talking to the physician, and they're prescribed that way. Should we have the generic opportunity, I would say to you that, that's something that we wouldn't see being run in a large pilot. That would be handled more on an individual patient basis through physician prescription. But generally, my experience is that would not be something that we would pilot as you suggest. I would agree with you. And then let's be clear on commercial mix and commercial treatments. Our reengineering process was all about trying to put us in a better position to improve the number and grow the number of commercial treatments that we do. Now mix factors into there, but keep in mind that I'm a lot more focused on the number of treatments that I do than what I get paid for those treatments than just worrying about the mix in and of itself. And in some cases, I'm not sure how easily we can control if, let's say for instance, the Medicare Advantage population is growing great guns. There's going to be some outgrowth or overgrowth of those areas perhaps than the commercial side. But as long as we're seeing quarter-to-quarter growth in commercial treatments, I think we believe that we're getting accomplished what we would like to. Mike, anything you want to add on that?