Samuel N. Hazen - HCA Healthcare, Inc.
Management
Well, let me give a little backdrop here first. If you look at 2017, we indicated throughout the year that we believe that the markets that we were in had strong fundamentals and they would ultimately show themselves. They don't show themselves in every year consecutively, as we've mentioned, but nonetheless, they do show themselves. And what we saw in 2017 was moderate demand growth in the first three quarters of the year across all of HCA's markets. But in the fourth quarter, we started to see some elevation in overall demand growth within our markets. It stepped up to almost 1.8%. We don't have the first quarter of 2018, nor the second quarter yet, but it is our belief that the fundamentals within our market are, in fact, strong, as we've mentioned, historically. We think as we look forward that the demand growth is somewhere between 2% and 2.5% across HCA's markets over the next intermediate run. Having said that, we do think our strategies, our capital deployment, our physician engagement and other components of our growth strategy are showing themselves very competitively in the marketplace. And that's part of what we see as contributing to our growth. The capital that we have deployed has come online, and in the individual facilities, most of them are performing as we expected with the new capital. I don't know that it's enough yet to fully indicate that that's what's driving our lift, but I think it is a contributing factor, A.J. And it's just hard for me to sit here and quantify it specifically and say that's driving X amount of growth. But I think, overall, when you look across the different components that we just mentioned, we had pretty much every service line indicator show positive growth, except for the emergency room visits, and that was down slightly. Again, it was down in the categories of our business that are the least profitable, our low acuity business and our Medicaid business. So it didn't have an effect, really, on our revenue stream, nor our profitability. But we remain optimistic about our markets and the macro factors, as I indicated. And then, we believe we're doing the right thing to build out our provider system capabilities, improve our service offerings, improve our quality and engagement with our constituents. And we think it's yielding a pretty positive result for the company.
A.J. Rice - Credit Suisse Securities (USA) LLC: Okay, great. Thanks a lot.