1. Division of Neurology, Respirology, Endocrinology and Metabolism, Department of Internal Medicine, Faculty of Medicine, University of Miyazaki, Miyazaki City, Miyazaki, Japan
2. Department of Pathology, Faculty of Medicine, University of Miyazaki, Miyazaki City, Miyazaki, Japan
3. Department of Diagnostic Pathology, University of Miyazaki Hospital, University of Miyazaki, Miyazaki City, Miyazaki, Japan