Steven J. Valiquette - Bank of America Merrill Lynch
Analyst
Okay. Got it. One other quick one, just if I can sneak one in too. The earlier color on the Safeway retail deal is helpful. Just the one quick follow-up on that is, I'm curious whether that Safeway deal precludes you from entering into other similar large deals with other retailers in those six states that you've entered into so far. And could you theoretically still do a national retail deal like this with any third party if you chose to do so? Thanks.
Stephen H. Rusckowski - President, Chief Executive Officer & Director: Yeah, we continue to have freedom to operate. It's a great relationship. We could build on it. But we believe there's more opportunities for us to build our patient access. We have unparalleled access, we believe. We have over 2200 Patient Service Centers, they have over 3500 people in physicians' offices, and then we have partnerships with JVs. So – and it continues to build, and we think this retail opportunity, as I described, has really got those three prongs. One is great patient experience, second is that helps us with efficiency, and potentially, augments that unparalleled access, with nice access to where people go every day which are typically retail stores. So we're encouraged, but we have more prospects as well going forward to expand in even further because we're not limited in our ability to operate with the relationship we have with Safeway.
Mark J. Guinan - Chief Financial Officer & Senior Vice President: Yes. As Steve said, the contract with Safeway does not preclude us from other arrangements. But as you might imagine, we're not going to put in redundant space. So if we have a Safeway location in a given neighborhood, it's unlikely, even if we have a partnership with another retailer, that we would put another PSC in the same location. So it's really all about mapping this out, the demographics where our business is, where we draw the businesses from the physician's office, et cetera. So in the partnership in Safeway it's really important, and they're kind of, since they're on the lead here, they're going to be one of the first people to decide, in partnership with us, where we're going to put some of these locations. And so I wanted to stress that while it doesn't preclude us and we certainly are in discussion with other retailers, we highly value the Safeway agreement, and as I said, as the first mover, they're going to going to be the one we're starting with.