1. Division of Endocrinology and Metabolism, Department of Internal Medicine, Gunma University Graduate School of Medicine, Maebashi, Japan
2. Department of Neurosurgery, Gunma University Graduate School of Medicine, Maebashi, Japan
3. Department of Hypothalamic and Pituitary Surgery, Toranomon Hospital, Minato-ku, Tokyo, Japan
4. Hypothalamic Pituitary Center, Tokyo Neurologic Center Hospital, Nishikasai, Tokyo, Japan