1. Division of Cardiology, Nephrology, Pulmonology and Neurology, Department of Internal Medicine, Asahikawa Medical University, Japan
2. Department of Cardiovascular Regeneration and Innovation, Asahikawa Medical University, Japan
3. Depatment of Internal Medicine, Asahikawa City Hospital, Japan
4. Division of Gastroenterology and Hematology/Oncology, Department of Internal Medicine, Asahikawa Medical University, Japan
5. Department of Cardiology, Hokkaido Junkanki Hospital, Japan