1 Center for Biomedical Research Informatics, NorthShore University HealthSystem, Evanston, Illinois, USA.
2 Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia, USA.
3 1] Center for Biomedical Research Informatics, NorthShore University HealthSystem, Evanston, Illinois, USA. [2] Department of Health Studies, University of Chicago, Chicago, Illinois, USA.