Yes absolutely, so I think to answer the question may be we go back a little bit further to the partnership we put in place with Bristol in diabetes [
PharmaDeals ID = 26257] where two of Bristol's programs were co-developed and now we are getting into a co-commercialization. So we learnt a huge amount through that experience with Bristol, I think the success of that partnership in bringing products actually to market through Onglyza and Kombiglyze, the combination with Metformin, has had our colleagues in peer pharma set up and take notice of that and we and no doubt Bristol get approached periodically by other pharma companies who are looking to embrace that risk share, cost share, and profit share approach in some of their late stage molecules, and that's exactly what happened with Amgen [
PharmaDeals ID = 46253], Amgen had an abundance of riches in their late stage pipeline, obviously there is a cost and a risk associated with that, so they reached out to a number of companies to explore the opportunity to co-develop and then co-commercialize that portfolio, and we are delighted that AstraZeneca, MedImmune, these being biologics, so it was principally our MedImmune colleagues who lead the push there, were successful in securing that deal which is over five clinical phase programs, the most advanced of which is now in Phase III, that's a psoriasis program. So to be able to work with a high quality company like Amgen on five clinical phase assets, one in Phase III, on such a sort of good quality, sort of basis of science and technology which is you know it was very pleasing. What's interesting about the Amgen deal [
PharmaDeals ID = 46253] is that we've kind of learned from and developed our philosophy around peer to peer the partnering as we have gone. I think it's fair to say when we first started to work with Bristol we were looking to sort of do everything two by two and so would we would have two everything and we would kind of double up a kind of as we describe it Noah's ark approach to development and commercialization and over time we've got much more confidence in relying on each other's skills and capabilities, and competency and therefore we've been reshaping the Bristol collaboration, but we took that learning into our discussions with Amgen from the get go, so it's very much now based on who's actually got the best skills and capability, who is strongest in a particular therapy area or geography and will actually determine who does what that's a later point in time and because the deal is structured as a profit share actually we should be both agnostic as to actually who does what, who is the best person taking on the activity that makes the value creation.