our next panelist is yuman choi. he focuses on medical devices and diagnostics. he lectures on entrepreneurial finance at tufts, serves as mentor in start-up accelerateors and director of a number of cutting edge health care companies. please give a warm welcome to yuman choi. next i'm delighted to bring out stephanie telenius. stefr any never backed away from a challenge, particularly if it involves destructing old ways of building business, whether building google wallet, shopping express or founding planet rx. she has brought her special touch to helping people manage health conditions with an app that connects people with health coaches. it is my distinct pleasure to welcome stephanie telenius. to guide the conversation today, we turn to scott hensley. host at npr. scott was the founding editor of the "wall street journal" health blog and headed over to npr in 2009 to become host of shots, online channel for health news from npr scientist desk. a warm welcome to scott hensley. take it away, scott. the stage is yours. >> i appreciate it. i want to start with y