Tycho W. Peterson - JPMorgan Securities LLC
Analyst
Hey, thanks. I'll start with a question on guidance, which I'm sure is on top of everybody's mind. Can you maybe just talk about what's factored in terms of share and price erosion in the oncology assumptions? And given your comments about going back in-network with Blue Cross Blue Shield of California and the renewed United contract, can you maybe just talk about any pricing assumptions that are embedded with those?
Mark C. Capone - President, Chief Executive Officer & Director: Thanks, Tycho. I'll start and then, Bryan, of course you can fill in if there is any other commentary. Obviously we considered all three of those things, as you mentioned, Tycho, what do we think will happen to market, what do we see from a price and what do we see from a share perspective. I think from a pricing perspective, what was important in the fourth quarter, this was really a first quarter that fully reflected all of the long-term contracts that we'd put in place, the 65% of our revenue that is under long-term contract. So the pricing in the fourth quarter, the results in the fourth quarter are reflective of that pricing, and of course, that's fixed for this next fiscal year. So that gives us pretty good visibility on pricing, at least in that 65% of the business that's locked up. Much of the rest of the business frankly are smaller regional players that have not necessarily expressed interest in evaluating their hereditary cancer portfolios. And so we wouldn't necessarily expect any material changes in pricing from those other regional payers. And so that leaves really a few others that we're in discussions with at this point, and any thoughts around those discussions that are ongoing have been reflected in any price assumptions that we've made for this guidance. So that handles the pricing piece. From a share perspective, as Bryan mentioned, we've chosen that to use the fourth quarter as our guide, as we look to provide guidance for this fiscal year. And so we've really used that trend we saw in the fourth quarter, the year over year trend between fourth quarter of last year and fourth quarter 2016 as a guide as we set the share expectations for the year. And so, and really it was that in combination that dictated our market growth assumptions as well. So the volume overall that we saw between fourth quarter of 2015 and fourth quarter 2016 really addressed both market and share. So that's the thinking that really went into the setting of our guidance from hereditary cancer. I think the philosophy is let's use current trends and let's use current reimbursement as the basis for guidance, reflecting that any improvements to those would be upside. Bryan, any other comments from?