1. Department of Cardiology and Vascular Medicine, Faculty of Medicine Universitas Indonesia/Harapan Kita National Cardiovascular Center, West Jakarta, Jakarta, Indonesia
2. Department of Cardiology and Vascular Medicine, Faculty of Medicine Brawijaya University/Dr. Saiful Anwar Hospital, Malang, East Java, Indonesia
3. Department of Radiology, John Radcliffe Hospital, Headington, Oxford, United Kingdom