1. Departments of Chemical Endocrinology, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
2. Clinical Neurocardiology Section, National Institute of Neurological Disorders and Stroke and
3. Reproductive Biology and Medicine Branch, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD
4. Departments of Endocrinology, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands