let's get to the natera story. joining us is the natera's ceo and co-founder.rong revenue growth. i think it was $55 million in 201 2013 to almost 160 million in 2014. can you keep it up? >> yes, i believe we can. you know our goal is not to keep growing revenues, but to make the world a better place, and i think if you focus on kind of testing that we do to improve health care decisions, and improve health care outcomes, i think the revenue will follow. so we don't focus on the revenue, we focus on the world. i think with that focus, the revenue will keep coming. >> to the extent you're focusing on the world. now you have a lot of public shareholders who want you to focus on revenues and profits, what are you doing to make the world in your words, a better place? >> well, natera has take an set of communications technologies, that we use in things like our cell phones and spaceships and we've applied that to looking at tiny axts dna. to improve genetic testing. so the idea is being able too detect single molecules of dna, we can catch genetic diseases like dow