We can take our next question from Jon Block with Stifel. Please go ahead.
Jonathan Block - Stifel, Nicolaus & Co., Inc.: Thank you, and good morning. Two questions. I'll ask them both up front. Juan Ramon, maybe for you. Just some high-level commentary on the altered structure, if you would, with the distributors on the Companion Animal side where I think the contracts are more volume based, if you would, rather than exclusivity. How has that performance been? Has it been in line with your expectations? And then, Glenn, just maybe on the gross margin cadence, I know you guys don't want to guide for the quarter, but how do we ramp the 67%-plus for the year? Can we expect a modest improvement in 2Q and then much more pronounced in 2H? Thanks, guys.
Juan Ramón Alaix - Zoetis, Inc.: Thank you, Jon. Let me answer the question on what was shown on that. Maybe a little bit background on these questions. So, we launched many products, many new products, in Companion Animal and then with these launches we decided to review the collaboration with the distributors in the U.S. and then as a result of this review in 2016, we decided, in agreement with the distributors, also to include in their promotional portfolio our vaccine for companion animals. The results of this collaboration was very positive for them and also for Zoetis. Then in 2017 we decided to expand this collaboration not only to vaccines plus some other products that they were responsible before, also to our parasiticide portfolio, REVOLUTION, ProHeart 6, and Simparica. All indicators are very positive, and now thanks to our direct presence together with the support of distributors, we have been increasing significantly our sales force in markets that we know that are highly competitive, and this additional volume that has been generating through all these regional portfolio has been also supporting the rest of the portfolio. Those that are affected by generic competition that, thanks to these newer studies, we are still performing in line with expectations, and we have not seen significant change on the trend of general impact in 2017. So overall, very pleased with the new way that we are collaborating with distributors. And one of the impact that also we have seen that's very positive has been the evolution of Simparica, that now we have our sales force, and the sales force of distributors supporting Simparica.