1. Section of Endocrine Surgery, David Geffen School of Medicine at UCLA, Los Angeles, California
2. Division of Endocrinology, Diabetes, and Metabolism, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, California
3. Division of Endocrinology, Diabetes, and Metabolism, VA Greater Los Angeles Healthcare System, Los Angeles, California
4. Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California
5. Department of Radiology, David Geffen School of Medicine at UCLA, Los Angeles, California