1. Department of Cardiology and Vascular Medicine, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia; Dr Sardjito General Hospital, Yogyakarta, Indonesia
2. Department of Cardiology and Vascular Medicine, Faculty of Medicine, Indonesia University, Jakarta, Indonesia; National Cardiovascular Center, Harapan Kita, Jakarta, Indonesia