1 Department of Cardiovascular and Renal Medicine, School of Medicine, Hyogo Medical University, 1-1 Mukogawacho, Nishinomiya, 663-8501, Japan.
2 Department of Cardiovascular and Renal Medicine, School of Medicine, Hyogo Medical University, 1-1 Mukogawacho, Nishinomiya, 663-8501, Japan. akiko-m@hyo-med.ac.jp.