 Hi, I'm Christa Donaldson. I'm the CEO of DRov, and DRov is short for Design Revolution. DRov is a product company that designs medical devices for people who live on less than $4 a day. We believe that design can be used to improve lives and health, no matter where you live. There are three things that are unique about DRov. One is that we design world-class products. That means they perform on par or better than the best products on the market. The second is that we take a market-driven approach. That means that we don't believe in donations or subsidies, but this means that we have to design very good qualities at a radically affordable cost. And this also means that the users get to choose about what they purchase, and if they choose to purchase them, they value them, if they value them, they use them. The third thing is that we take a user-centric approach. And that means not just understanding the users, the end-user, the doctors who use them, the purchasing decision-maker, but also the context in which people live in. You know, how many hours the electricity is on. All those sorts of things that you need to know to design great products. One of our projects is the Remotion Knee. And it's a polycentric prosthetic knee for amputees who've lost their leg above the knee. And it's been fit now on over 5,000 amputees, mostly in India, but in also nine other countries throughout the world. And it's amazing in the sense that when we talk to amputees, they return to school, they return to work. And for example, one of our amputees is a young woman named Pranima, who lost her leg in a car accident. And she told us that once she got fit, she can now return to go back to engineering school. Our product, Brilliance, is a phototherapy device to treat severely Jonas' babies. Jonas is actually the number one reason why babies are readmitted to hospitals. And if he's not treated, it can lead to brain damage or death. The thing is, is most phototherapy devices cost 3,500 US dollars or more. And Brilliance costs about $400, 22,000 rupees. And we've brought it to market and we're now scaling it globally through our partner Phoenix Medical Systems of Chennai, India. And as of today, almost 5,000 babies have been treated.