Sure. So, in China we're in this very enviable position that our strategic partnerships, the agreements that we've signed, and the work that we're doing together with everything from small clinics to our very largest hospitals, both public and private Aier as well, is in partnership. And so as a result of that, that 100 million participants in social out, social consumer outreach in 100 cities, that is one of our partners doing extraordinary work, because they have a very high desire to increase the number of refractive procedures with ICL and EVO. That is mirrored in a number of facilities and a number of clinics. But what is really interesting is that the majority of what we're seeing is being done and produced by the doctors. The marketing departments themselves, always in coordination, but they're doing more than themselves. We have in our video library here at STAAR over 100 videos of doctors, who have done outreach about the enthusiasm of EVO. We have one very famous hospital, I don't want to embarrass, where all the doctors did a music video playing instruments and dancing to their enthusiasm about EVO to appeal to their patients. And we also have our retail clinic partner, who now has standing remotely in a very large Shanghai mall and in multiple other locations. And so there's a lot of consumer outreach, that social media that's kiosk related, special events related, but we're talking about millions of touches each and every week. So, it's quite expansive. With regard to COVID-19 and China. What we're seeing right now is China's very well controlled, if there are any outbreaks in certain areas, they're quickly gotten to and there has been at this point in time since busy season began, no disruption in our business and the amount of interest literally, waiting rooms, full lines outside the door. There's just a tremendous enthusiasm for getting visual freedom in light of a pandemic, there is no doubt that there is more interest as a result of the challenges of contact lenses, sunglasses, with masks, et cetera. So, in China, we're seeing, I think some very excellent numbers at the beginning of busy season.