1. Department of Geriatric Medicine, Osaka University Graduate School of Medicine, Suita, Japan.
2. Department of Clinical Gene Therapy, Osaka University Graduate School of Medicine, Suita, Japan.
3. Department of Gene Therapy Science, Osaka University Graduate School of Medicine, Suita, Japan.
4. First Department of Oral and Maxillofacial Surgery, Osaka Dental University, Hirakata, Osaka.
5. Department of Food Science and Nutrition, Nara Women's University, Nara, Japan.
6. Research Department, NISSEI BILIS Co. Ltd., Koga, Shiga, Japan.