[1] Kyung Hee Univ, Med Ctr, Coll Med, Div Nephrol,Dept Internal Med, 26 Kyungheedae Ro, Seoul 02447, South Korea
[2] Natl Evidence Based Healthcare Collaborating Agcy, Div Healthcare Technol Assessment Res, 400 Neungdong Ro, Seoul 04933, South Korea
[3] Kyung Hee Univ, Coll Med, Kyung Hee Univ Hosp Gangdong, Div Nephrol,Coll Med, 892 Dongnam Ro, Seoul 05278, South Korea
[4] Seoul St Marys Hosp, Dept Internal Med, Div Nephrol, Seoul, South Korea
[5] Korea Univ, Anam Hosp, Dept Surg, Seoul, South Korea
[6] Kyungpook Natl Univ, Chilgok Hosp, Sch Med, Daegu, South Korea
[7] Keimyung Univ, Dongsan Hosp, Dept Internal Med, Div Nephrol,Sch Med, Daegu 42601, South Korea
[8] Pusan Natl Univ, Pusan Natl Univ Hosp, Div Nephrol, Div Nephrol,Sch Med, Busan, South Korea
[9] Seoul Natl Univ, Bundang Hosp, Dept Neurosurg, Seongnam, South Korea
[10] Yonsei Univ, Severance Hosp, Dept Internal Med, Div Nephrol,Coll Med, 50 Yonsei Ro, Seoul, South Korea
[11] CHA Univ, CHA Bundang Med Ctr, Dept Internal Med, Div Nephrol, Seongnam, South Korea
[12] Sungkyunkwan Univ, Sch Med, Samsung Med Ctr, Dept Surg, Seoul, South Korea
[13] Soonchunhyang Univ, Seoul Hosp, Dept Internal Med, Seoul, South Korea
[14] Yonsei Univ, Coll Med, Dept Surg, Seoul, South Korea
[15] Inje Univ, Busan Paik Hosp, Dept Internal Med, Busan, South Korea
[16] Chonnam Natl Univ, Med Sch, Dept Surg, Gwangju, South Korea
[17] Hallym Univ, Coll Med, Kangdong Sacred Heart Hosp, Dept Internal Med, Seoul, South Korea
[18] Catholic Univ Korea, Incheon St Marys Hosp, Coll Med, Div Nephrol,Dept Internal Med, Incheon 21431, South Korea
[19] Yonsei Univ, Wonju Severance Christian Hosp, Dept Surg, Wonju Coll Med, Wonju, South Korea
[20] Kosin Univ, Coll Med, Dept Internal Med, Renal Div,Coll Med, Busan 602703, South Korea
[21] Kosin Univ, Coll Med, Dept Pathol, Busan 602702, South Korea
[22] Catholic Univ Korea, Eunpyeong St Marys Hosp, Coll Med, Div Nephrol,Dept Internal Med, Seoul, South Korea