1. Informatics, Decision-Enhancement and Analytic Sciences Center, VA Salt Lake City Health Care System, Salt Lake City, Utah, USA
2. Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, Utah, USA
3. Department of Population Health Sciences, University of Utah School of Medicine, Salt Lake City, Utah, USA
4. Center for Innovation to Implementation, VA Palo Alto Health Care System, Menlo Park, California, USA
5. Department of Surgery, Stanford University School of Medicine, Palo Alto, California, USA.