[1] Ulsan Hosp, Ulsan Med Ctr, Div Cardiol, Ulsan, South Korea
[2] Queen Elizabeth Hosp II, Cardiol Dept, Kota, Kinabalu, Malaysia
[3] Queen Elizabeth Hosp II, Clin Res Ctr, Kota, Kinabalu, Malaysia
[4] Kangwon Natl Univ, Dept Internal Med, Sch Med, Chunchon, South Korea
[5] East Lancashire Hosp NHS Trust, Blackburn, Lancs, England
[6] Sungkyunkwan Univ, Samsung Med Ctr, Dept Internal Med, Sch Med,Heart Vasc Stroke Inst, Seoul, South Korea
[7] Sungkyunkwan Univ, Samsung Med Ctr, Cardiovasc Ctr, Sch Med,Heart Vasc Stroke Inst, Seoul, South Korea
[8] Inje Univ, Div Cardiol, Ilsan Paik Hosp, Goyang, South Korea
[9] Keimyung Univ, Dept Internal Med, Dongsan Med Ctr, Daegu, South Korea
[10] Seoul Natl Univ Hosp, Dept Internal Med, Seoul, South Korea
[11] Seoul Natl Univ Hosp, Cardiovasc Ctr, Seoul, South Korea
[12] Beijing Univ, Dept Internal Med, Div Cardiol, Shougang Hosp, Beijing, Peoples R China