Yes. Gary will now answer the question about tariffs because he's got a better handle on how we're making the formulation where it's sourced. But to answer your first question, the expectation is that the primary endpoint for the trial will be in older patients. We picked older patients because older patients have a different risk benefit. I think is important because it's a call to action. And the risk benefit is that, if patients have a decline in function, that actually means something. That means something in terms of balance, gait difficulties, mobility, disability, falls and fractures, mortality. I mean, you can dip into entire literature. So, that tells you kind of sets up nicely why physical function is important. With that said, the primary endpoint of your Stair Climb is 24 weeks. If you do the power calculations, that ends up being about and then back up. I don't know whether you use three or six yet. It feels like three, but we got to get the full data set to see, because three does a great job on lean, but six does a great job on fat, but three does a good job on fat too. So, we're still debating that, but put that aside for a moment. There will be one dose. So, one dose we'll take forward. And so, it will be one dose versus, semaglutide plus semaglutide and or tirzepatide. We're thinking now we'll probably do both. Why? Because there's only two drugs on the market right now, GLP-1s that are commercial. And so, it makes sense if we want to be using combination with either one, we should probably have data on both of them and stratify the Phase 3, so that we pre-specify that we're going to analyze the data with semaglutide group and tirzepatide group separately. And I think that would be very helpful. All the rest of the companies, even though there's 120 companies working on this, on obesity products, right now, the tirzepatide and semaglutide are way ahead. And so, by the time our Phase 3 is completed, those are still going to be the market leaders that we'll have to approach. So, with that said, we believe that the numbers will be something like 200 patients per arm. So, a total of approximately 400 patients, randomized for the Phase 3. Gary Barnett, can you answer the question about tariffs and whether we have concerns about sourcing and that could potentially affect enobosarm price.