1. School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA, USA
2. Department of Information Technology and Electrical Engineering, ETH Zurich, Zurich, Switzerland
3. Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, USA
4. Department of Stem Cell and Regenerative Biology, Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA