Well as I said we are, our partnering is alive and well, we are doing as much or more licensing than we've done previous years. So this year we've done three clinical stage deals, one with AiCuris [
PharmaDeals ID = 49075], on a viral terminase inhibitor for CMV, one with Chimerix [
PharmaDeals ID = 47872] on the tenofovir prodrug and a later stage deal with the Endocyte [
PharmaDeals ID = 46449] on a folate conjugated to a Vinca alkaloid for delivering oncology agent to a fully over expressing tumors, that's now in Phase III. And then we've done about five earlier stage biotechnology deals, and we've done a few big academic collaborations. So we are on track to do about the 50 highly significant or major deals that we have done every year for the past several years. And as I said our Merck's internal R&D is going to be as robust as ever. We are not diminishing our investment in internal R&D because we want to move, it's successful, we've had some great successes with the cathepsin K inhibitor, which is a result of both partnering and internal research, and we've got our suvorexant that we will file this year for a sleep indication, cathepsin K inhibitor we'll file next year. So some really nice innovative, first-in-class mechanisms, that will hopefully make up for in part for these singular patent expiry.