1. Department of Cardiovascular Medicine, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
2. Department of Community Medicine and Human Resource Development, Tokushima University Graduate School of Biomedical Sciences, Tokushima,Japan
3. Department of Hematology, Endocrinology and Metabolism, Tokushima, Japan
4. Department of Cardiovascular Surgery, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan