1. Section of Endocrine Surgery, University of California Los Angeles David Geffen School of Medicine, Los Angeles, California
2. Department of Biostatistics, University of California Los Angeles Fielding School of Public Health, Los Angeles, California
3. Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of California Los Angeles David Geffen School of Medicine, Los Angeles, California
4. Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, VA Greater Los Angeles Healthcare System, Los Angeles, California