1. Division of General Internal Medicine, University of Colorado Anschutz Medical, Aurora, Colorado, USA.
2. Insitute for Health Research, Kaiser Permanente Colorado, Aurora, Colorado, USA.
3. Division of General Internal Medicine and Health Services Research, David Geffen School of Medicine, UCLA, Los Angeles, California, USA.
4. Department of Medicine, Department of Veterans Affairs, Eastern Colorado Health Care System, Aurora, Colorado, USA.
5. mHealth Impact Lab, Colorado School of Public Health, University of Colorado, Aurora, Colorado, USA.