1. Division of Endocrinology and Metabolism, National Center for Child Health and Development, Tokyo, Japan
2. Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan
3. Division of Laboratory Animal Resources, National Research Institute for Child Health and Development, Tokyo, Japan; and
4. Division of Urology, National Center for Child Health and Development, Tokyo, Japan.
5. Department of Systems BioMedicine, National Research Institute for Child Health and Development, Tokyo, Japan
6. Department of Reproductive Medicine, National Research Institute for Child Health and Development, Tokyo, Japan
7. Department of Human Genetics, National Research Institute for Child Health and Development, Tokyo, Japan