1. Department of General Internal Medicine, Kobe Rousai Hospital, 4-1-23 Kagoike Touri, Chuo-Ku, Kobe 651-0053, Japan
2. Department of Nephrology, Kobe Rosai Hospital, 4-1-23 Kagoike Touri, Chuo-Ku, Kobe 651-0053, Japan
3. Department of Cardiovascular Medicine, Kobe Rosai Hospital, 4-1-23 Kagoike Touri, Chuo-Ku, Kobe 651-0053, Japan