![](https://react.seas.upenn.edu/wp-content/uploads/2016/01/Ring_David_100x125.jpg)
6th year PhD student, Lee Research Group
University of Pennsylvania
REACT Entry Cohort: 1
daring@seas.upenn.edu
http://www.seas.upenn.edu/~leegroup
University of Pennsylvania
REACT Entry Cohort: 1
daring@seas.upenn.edu
http://www.seas.upenn.edu/~leegroup