1 Division of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, University of California, San Francisco (Fresno Medical Education Program), Fresno, California, USA.
2 Department of Endocrine Neoplasia and Hormonal Disorders, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
3 The Lundquist Institute, Torrance, California, USA.
4 Division of Endocrinology, Diabetes and Metabolism, Harbor-UCLA Medical Center, Torrance, California, USA.
5 David Geffen School of Medicine at UCLA, Los Angeles, California, USA.