1. Division of Research; Kaiser Permanente Northern California; Oakland CA USA
2. Department of Medicine; Kaiser Permanente Oakland Medical Center; Oakland CA USA
3. University of Colorado School of Medicine; Denver CO USA
4. Department of Pediatrics; University of Minnesota; Minneapolis MN USA
5. Institute for Health Research; Kaiser Permanente Colorado; Denver CO USA
6. HealthPartners Institute for Education and Research; Minneapolis MN USA
7. Division of Public Health Sciences; Wake Forest University School of Medicine; Winston-Salem NC USA
8. Department of Pediatrics; Kaiser Permanente San Francisco Medical Center; San Francisco CA USA