1. Division of Hospital Internal Medicine, Mayo Clinic, Rochester, MN, USA
2. Division of Hospital Internal Medicine, Mayo Clinic, Scottsdale, AZ, USA
3. Division of Hospital Internal Medicine, Mayo Clinic, Jacksonville, FL, USA
4. Department of Health Sciences Research, Mayo Clinic, Rochester, MN
5. Department of Medicine, Division of General Internal Medicine, Mayo Clinic, Rochester, MN
6. Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, MN
7. Department of Medicine, Clinical Research Office, Mayo Clinic, Rochester, MN