1. Department of Cardiology; Hirosaki University Graduate School of Medicine; 5 Zaifu-cho Hirosaki Hirosaki Aomori Prefecture Japan
2. Department of Nursing; Hirosaki University Graduate School of Health Science; 66-1 Hon-cho Hirosaki Hirosaki Aomori Prefecture Japan
3. Department of Hypertension and Stroke Internal Medicine; Hirosaki University Graduate School of Medicine; 5 Zaifu-cho Hirosaki Hirosaki Aomori Prefecture Japan
4. Division of Cardiology; Saiseikai Kumamoto Hospital; 5-3-1 Chikami Minamiku Kumamoto Kumamoto Kumamoto Prefecture Japan