[1] Samsung Med Ctr, Heart Vasc & Stroke Inst, Grown Congenital Heart Clin, Dept Nursing, Seoul, South Korea
[2] Sungkyunkwan Univ, Sch Med, Samsung Med Ctr, Dept Pediat,Grown Up Congenital Heart Clin,Heart, Seoul, South Korea
[3] Sungkyunkwan Univ, Sch Med, Samsung Med Ctr, Div Cardiol,Grown Up Congenital Heart Clin,Heart, Seoul, South Korea
[4] Sungkyunkwan Univ, Sch Med, Samsung Med Ctr,Heart Vasc & Stroke Inst, Dept Thorac & Cardiovasc Surg,Grown Up Cognetial, Seoul, South Korea