1Department of Anesthesiology, Critical Care Medicine,George Washington University, 17612 Coatbridge Place, Olney, MD, 20832, USA
2Cerner Corporation, 1953 Gallows Rd., Suite 500, Vienna, VA, 22182, USA
3Center for Clinical and Research Informatics,North Shore Research Institute, 1001 University Place, Evanston, IL, 60201, USA