1. Graduate School of Health Sciences, Kobe University, Kobe, Hyogo, Japan
2. The Japanese Red Cross College of Nursing, Tokyo, Japan
3. Graduate School of Human Health Sciences, Tokyo Metropolitan University, Tokyo, Japan
4. Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
5. Department of Pharmacology, Kobe University Hospital, Kobe, Hyogo, Japan
6. Department of Internal Medicine, Cardiovascular Division, Kakogawa Central City Hospital, Kakogawa, Hyogo, Japan