1. Endocrine Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland.
2. PET Department, Clinical Center, National Institutes of Health, Bethesda, Maryland.
3. Diabetes, Obesity, and Endocrinology Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland.
4. Thoracic and Endocrine Surgery, University Hospitals of Geneva, Geneva, Switzerland.