1 Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA
2 Institute of Medical Biotechnology, Friedrich-Alexander University (FAU), Erlangen, Germany
3 Department of Biomedical Engineering, University of Connecticut, Mansfield Connecticut, USA
4 Department of Radiation Physics, Duke University, Durham, NC 27708, USA
5 Department of Electrical Engineering & Computer Sciences, University of California, Berkeley CA, USA
6 School of Electrical & Electronic Engineering, Yonsei University, Seoul 03722, Republic of Korea
7 Google, Inc., Mountain View, CA 94043, USA
8 Department of Pathology, Duke University, Durham, NC 27708, USA