[1] Yonsei Univ, Inst Kidney Dis Res, Dept Internal Med, Coll Med, Seoul, South Korea
[2] Yonsei Univ, Gangnam Severance Hosp, Coll Med, Dept Internal Med,Div Nephrol, Seoul, South Korea
[3] Yonsei Univ, Severance Cardiovasc Hosp, Coll Med, Div Cardiol, Seoul, South Korea