1. Otsu Nutraceuticals Research Institute, Nutraceuticals Division, Otsuka Pharmaceutical Co., Ltd, Shiga, Japan;
2. Tokushima Research Institute, Pharmaceuticals Division, Otsuka Pharmaceutical Co., Ltd, Tokushima, Japan;
3. Fukuoka Mirai Hospital Clinical Research Center, Souseikai Medical Corporation, Fukuoka, Japan;
4. Health Evaluation Center, Osaka Gyoumeikan Hospital, Osaka, Japan