1. Division of Neurology Ohmihachiman Community Medical Center Ohmihachiman Japan
2. Division of Cardiology Ohmihachiman Community Medical Center Ohmihachiman Japan
3. Division of Internal Medicine Ohmi‐Onsen Hospital Higashi Ohmi Japan
4. Division of Psychiatry Ohmi‐Onsen Hospital Higashi Ohmi Japan
5. Department of Neuropathology, Institute for Medical Science of Aging Aichi Medical University Nagakute Japan
6. Department of Neurological Science Tohoku University Graduate School of Medicine Sendai Japan