Affiliation: | 1. UCLA David Geffen School of Medicine, Los Angeles, CA, USA;2. Department of Medicine, UCLA David Geffen School of Medicine, Los Angeles, CA, USA;3. Department of Biomathematics, UCLA David Geffen School of Medicine, Los Angeles, CA, USA;4. Section of Endocrine Surgery, Department of Surgery, UCLA David Geffen School of Medicine, Los Angeles, CA, USA;5. Division of Gastroenterology, Department of Medicine, UCLA David Geffen School of Medicine, Los Angeles, CA, USA;6. Sansum Clinic, Santa Barbara, CA, USA;7. Division of Endocrinology, Diabetes and Hypertension, Department of Medicine, UCLA David Geffen School of Medicine, Los Angeles, CA, USA;8. Division of Endocrinology, VA Greater Los Angeles Healthcare System, Los Angeles, CA, USA |