1. Department of Computer Science, University of Illinois at Urbana-Champaign, Urbana, Illinois, 61801
2. Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, 61801
3. Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois, 60612
4. Department of Medical Information Science, University of Illinois at Urbana-Champaign, Urbana, Illinois, 61801