1. Henry Ford Health System, Public Health Sciences , Detroit, Michigan, USA
2. Spectrum Health, Research and Development, Grand Rapids, Michigan, USA
3. The Meyers Primary Care Institute , Worcester, Massachusetts, USA
4. Department of Medicine, University of Massachusetts Medical School , Worcester, Massachusetts, USA
5. Health Partners Institute , Bloomington, Minnesota, USA
6. Baylor Scott and White Medical Center Temple, Center for Applied Health Research , Temple, Texas, USA
7. Essentia Institute for Rural Health, Division of Research , Duluth, Minnesota, USA
8. Henry Ford Health System, Center for Health Policy and Health Services Research , Detroit, Michigan, USA