1. Division of Endocrinology, Diabetes, Metabolism, and Nutrition, Mayo Clinic, Rochester, Minnesota, USA.
2. Division of Hospital Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA.
3. Division of Hospital Internal Medicine, Mayo Clinic, Jacksonville, Florida, USA.
4. Knowledge and Evaluation Research Unit, Mayo Clinic, Rochester, Minnesota, USA.
5. Division of Hospital Medicine, Mayo Clinic Health System, Austin, Minnesota, USA.
6. Mayo Clinic Libraries, Rochester, Minnesota, USA.
7. Division of Health Care Delivery Research, Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, Minnesota, USA.