1. Department of Endocrine Neoplasia and Hormonal Disorders, Division of Internal Medicine; The University of Texas MD Anderson Cancer Center, Houston, Texas.
2. Department of Endocrinology, Diabetes and Metabolism, Baylor College of Medicine, Houston, Texas.
3. Department of Genitourinary Medical Oncology; The University of Texas MD Anderson Cancer Center, Houston, Texas.
4. Melanoma Medical Oncology, Division of Cancer Medicine; The University of Texas MD Anderson Cancer Center, Houston, Texas.