1. Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, Minnesota.
2. Division of Preventive, Occupational and Aerospace Medicine, Department of Medicine, Mayo Clinic, Rochester, Minnesota.
3. Division of Psychiatry, Department of Psychiatry and Psychology, Mayo Clinic, Rochester, Minnesota.
4. Division of Health Care Policy and Research, Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota.
5. Mayo Medical School, Mayo Clinic College of Medicine, Rochester, Minnesota.
6. Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
7. Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, Minnesota.
8. Mayo Clinic Libraries, Rochester, Minnesota.
9. Division of Primary Care Internal Medicine, Department of Medicine, Mayo Clinic, Rochester, Minnesota.