Sure. Thank you, Robbie. So, in terms of the cadence of the year and the impact to gross margin, we’ve got a few different dynamics playing out obviously. We’ve got the move to the pay-as-you-go model, which we just discussed in the couple of questions. I won’t repeat what I’ve already said there, which is a bit of a headwind initially but becomes a very, very healthy tailwind, that we really believe is good for patients, payors and also very good for us. In terms of the cadence on the international side, we are absolutely thrilled with what’s going on in Europe and you have secured a 50% uplift in ASPs and without an impact to the end customer, and having that materialize in our revenue growth is just tremendous. And so that is a difference in the first half, then, it was at the same time last year. And as Shacey described more normalized growth in our existing markets in Europe in the second half and so there’s the cadence there. In terms of the Drug Delivery we expect this is going to be roughly consistent throughout the year is what we what we’ve tried to do historically. We are not always successful, but we do have a longer-term forecast from Amgen that informs the vast majority of our Drug Delivery. So, we try and even out as much as we can with working with Amgen just reduced volatility. In terms of the gross margin, as I said earlier, we do expect gross margin to be flat for the year at this tremendous result that we had about 65% in 2018. So, we’re thrilled about that. But the cadence is different. So, the first quarter, assuming that we launched U.S. manufacturing as we are on schedule to do in shortly, you really going to see that impact the numbers more in the second quarter and through the remainder of the year than you would in the first quarter. So, I would expect the margin trajectory in the first quarter to be essentially consistent with where we’ve been for the last couple of quarters. But then there as I’ve said in prior comments, we are going to take the accounting charges for period costs as you ramp in a new manufacturing and you ramp it up and as Shacey described we are thrilled to talk about the fact that we are now going to have two lines here Acton. And so, we are going to have a pullback of probably two points to three points in gross margin from this move to U.S. manufacturing. However, as I said earlier, that’s offset in part by just the tremendous work that the operations team is doing both in China and other were otherwise that offsets that. So, all in all, that I think helps illustrate, some of the cadence here for the year on gross margin.