Jason R. Mills - Canaccord Genuity, Inc.
Analyst · Canaccord Genuity. Please go ahead
Thanks, Mike, for taking the question. Congrats on the good quarter. I wanted to go back to David's question on number of centers. I was also surprised with the expansion in the number of centers in United States. And I'm wondering if you could, just looking at the landscape, and you're – to your funnel, what you expect sort of from a long-term perspective in the United States, specifically in terms of the number of TAVI centers there might be, with the puts and takes of the regulations, et cetera? And I'm also wondering if, based on your commentary, that you didn't see the slowdown during the Christmas months or the holidays that you normally see in other businesses. If you're not seeing dramatic improvements in length of stay, so patients are getting out of the hospital in one day or two days so they're not spending that time in the hospital during the holiday. So, I'm wondering if that's have an impact also on the number of centers that could be TAVI centers over the longer term?
Michael A. Mussallem - Chairman & Chief Executive Officer: Yeah. Good question, Jason. And it's fair to say that we're learning as we go. These are tough to anticipate in advance just exactly how many centers are going to be into it. And what we find here is with the success of TAVR, and actually it appears to be a really learnable procedure, that centers are sincerely interested in having this option to offer to their patient. Just think if you're a center that only offers a surgical option, you're not quite as attractive as you might be if you had a full range of options. So, this is encouraging centers to come into it. In terms of how many, we do have somewhat of a backlog. It would be a real guess at this point, but maybe an additional 40 sites in 2016 might be added. We know some of these sites, if we're successful in getting a Pulmonic indication might be pediatric sites that come in and learn TAVR as well. So it's an estimate, Jason, but hopefully that helps you a little bit. In terms of what's going on over the holiday season, I suspect you're right, the shorter length of stays probably encouraged people to maybe take something on over the holidays that they might not have taken on if it had a long recovery period. We didn't anticipate it, so I can't tell you that we had this all figured out in advance. This is more we watched the story and now we're applying our own explanations to why, but we probably have to dig a little deeper to understand it. But, again, I'll just remind you on the bigger picture in terms of number of centers. We continue to see the large bulk of the growth come from these big hospitals that already have strong programs.