Affiliation: | 1. Endocrine Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland;2. Thoracic and Gastrointestinal Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland;3. Section on Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland |