1. Division of Endocrinology and Metabolism, Department of Medicine, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
2. Division of Biostatistics, Department of Public Health Sciences, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
3. American Board of Internal Medicine, Philadelphia, PA 19106, USA
4. Endocrine Society, Washington, DC 20036, USA
5. San Antonio Uniformed Services Health Education Consortium, Brooke Army Medical Center, JBSA Fort Sam Houston, San Antonio, TX 78234, USA
6. Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA