1. Program in Reproductive and Adult Endocrinology, Eunice Kennedy Shriver National Institute of Child Health and Human Development; National Institutes of Health, Bethesda, Maryland.
2. National Cancer Institute; National Institutes of Health, Bethesda, Maryland.
3. Clinical Center; National Institutes of Health, Bethesda, Maryland.
4. Clinical Endocrinology Branch, National Institute of Diabetes, Digestive, and Kidney Diseases; National Institutes of Health, Bethesda, Maryland.