1. Clinical Physiology Unit; Sakura Medical Center, Toho University; Sakura Japan
2. Department of Neurology and Internal Medicine; Sakura Medical Center, Toho University; Sakura Japan
3. Department of Urology; Sakura Medical Center, Toho University; Sakura Japan
4. Department of Neurology; Chiba University; Chiba Japan
5. Continence Center; Dokkyo Medical College; Tochigi Japan
6. Department of Molecular Diagnosis; Graduate School of Medicine, Chiba University; Chiba Japan