1. Program in Reproductive and Adult Endocrinology; Eunice Kennedy Shriver National Institute of Child Health and Human Development; National Institutes of Health; Bethesda MD USA
2. Department of Endocrinology and Diabetology; Hospital Garcia de Orta; Almada Portugal
3. Section of Endocrinology and Metabolism; University of Santo Tomas Hospital; España Manila Philippines
4. Clinical Neuroendocrinology Branch; National Institute of Mental Health; National Institutes of Health; Bethesda MD USA
5. Division of Endocrinology and Carcinoid and Neuroendocrine Tumour Center; Cedars-Sinai Medical Center; Los Angeles CA USA
6. Warren Grant Magnuson Clinical Center; National Institutes of Health; Bethesda MD USA
7. Center for Cancer Research; National Cancer Institute; National Institutes of Health; Bethesda MD USA