ronan levy is a cso at trait biosciences. thanks for being with us this morning. nan: my pleasure. scott: well, doctors using virtual reality when "press:here" continues. ♪ ♪ as a podcast on itunes. scott: welcome back to "press:here." i want to take you out to a lab at ucsf hospitals, where doctors are working with virtual reality and other tech tools to spread medical knowledge around the world. here's a video conference between doctors in the bay area and doctors in cameroon. the nonprofit health4theworld uses video, apps, and vr to spread knowledge. now, it's hard to show video--virtual reality on television, but here's a glimpse at what doctors and patients are looking at as they work to understand stroke. dr. bhavya rehani is ceo of the nonprofit behind this effort, health4theworld. thanks for being with us this morning. bhavya rehani: thanks for having me. scott: so, you are a professional doctor, you are a professor at ucsf, and you run a charity as well? bhavya: that's right. scott: and find the time to do all those? bhavya: it's amazing. it's so fulfillin