1. Kyoto Institute of Health Sciences; Kyoto Japan
2. School of Health Sciences, Faculty of Medicine, Kyoto University; Kyoto Japan
3. Innovative Clinical Research Center, Kanazawa University; Kanazawa Japan
4. Kyoto Preventive Medical Center; Kyoto Japan
5. Division of Clinical Nutrition and Internal Medicine; Okayama Prefectural University; Okayama Japan
6. Department of Clinical Neuroscience; University of North Dakota, School of Medicine and Health Sciences; Fargo North Dakota