1. Division of Endocrinology, Diabetes, Metabolism, and Nutrition, Mayo Clinic, Rochester, Minnesota.
2. Knowledge and Evaluation Research Unit, Mayo Clinic, Rochester, Minnesota.
3. Mayo Graduate School, Mayo Clinic, Rochester, Minnesota.
4. Mayo Clinic Libraries, Mayo Clinic, Rochester, Minnesota.
5. Department of Obstetrics and Gynecology, Mayo Clinic, Rochester, Minnesota.
6. Division of Preventive, Occupational, and Aerospace Medicine, Mayo Clinic, Rochester, Minnesota.