Yes. And as far as 2020 goes, I mean, obviously, we're not going to guide here, will give you more color on the Q4 call. But just to help you think about it. To David's point if you start at the top of the P&L, assuming the market stay healthy. We would expect this revenue momentum to continue. So I would start with that. And then from a margin perspective, as we've been saying there is really two key components. But if you look at Surgical, we should continue to get - have strong momentum there as well, particularly as we continue to grow PanOptix and that becomes a bigger piece of the portfolio. We'll get a natural mix lift from a gross margin perspective. So I would think about that a little bit. On the Vision Care side, a little bit similar to what we saw in Q3, that's going to continue to be pressured. We have said that we are going to be putting in new manufacturing lines, it takes 18 to 24 months to get those fully optimized, and 2020 is the peak year from an installation perspective. So as you incur startup costs as an example, those don't get amortized, we'll continue to see those types of pressure in 2020. And then we'll also have the PRECISION1 right? Again, as that comes out of the gates there is a little bit of margin pressure there as well. So a couple of pressure points on the Vision Care side. And then, we're going to continue to invest in the business, right. We're going to continue to invest in R&D and some of these other areas. So those are the key levers that I would think about from a margin perspective. But overall, as David alluded to, we'd expect continued improvement in margins next year. But the real acceleration really comes in 2021, 2022, 2023 when you get through some of those pressure points, that I just talked about. And then to your point, we talked about last time that the tax rate with the Swiss tax reform, that should go up about three points from what our average rate is in 2019, we've obviously guided to the low end of that effective tax rate. Next year you're going to carry four quarters of interest expense versus three quarters. And then the other thing I would think about, that we haven't really talk a lot about is share count, right. So we do not have plans at this stage to offset dilution next year, so I would just take that into account. We'll continue to review that when we review our capital allocation methodology and strategy with the Board. But as of 2020, there is no intention to offset that dilution, because we're going to continue to invest in the business. So that's how I'd frame up next year and we'll obviously give you some clear guidance on the Q4 call.