1. Department of Cardiovascular MedicineFaculty of Medicine and Graduate School of MedicineHokkaido University Sapporo Japan
2. Faculty of MedicineDiponegoro University Semarang Indonesia
3. Department of ImmunobiologyKitasato University School of Medicine Kanagawa Japan
4. Department of Cardiovascular MedicineFaculty of Medical SciencesKyushu University Fukuoka Japan