1. Grown-Up Congenital Heart Clinic, Heart Vascular Stroke Institute, Seoul, Korea.
2. Department of Pediatrics, Grown-Up Congenital Heart Clinic, Heart Vascular Stroke Institute, Seoul, Korea.
3. Division of Cardiology, Grown-Up Congenital Heart Clinic, Heart Vascular Stroke Institute, Seoul, Korea.
4. Department of Thoracic & Cardiovascular Surgery, Grown-Up Congenital Heart Clinic, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.