1. Department of Diabetes, Endocrinology and Metabolism, Shinshu University School of Medicine, Matsumoto, 390-8621, Japan
2. Department of Drug Discovery Science, Shinshu University School of Medicine, Matsumoto, 390-8621, Japan
3. Department of Surgery, Noguchi Thyroid Clinic and Hospital Foundation, Beppu, 874-0902, Japan
4. Department of Genetic Medicine, Sapporo Medical University, Sapporo, 060-8556, Japan