[1] Seoul Natl Univ, Bundang Hosp, Dept Pediat, Seongnam, South Korea
[2] Seoul Natl Univ, Coll Med, Dept Pediat, Seoul, South Korea
[3] Pusan Natl Univ, Dept Pediat, Yangsan Childrens Hosp, Yangsan, South Korea
[4] Sch Med, Yangsan, South Korea
[5] Hallym Univ, Dept Pediat, Sacred Heart Hosp, Anyang, South Korea
[6] Catholic Univ Korea, St Vincents Hosp, Coll Med, Dept Pediat, Seoul, South Korea
[7] Chonnam Natl Univ, Dept Pediat, Gwangju, South Korea
[8] Sch Med, Gwangju, South Korea
[9] Ewha Womans Univ, Sch Med, Dept Pediat, Seoul, South Korea
[10] Kyungpook Natl Univ, Sch Med, Dept Pediat, Daegu, South Korea
[11] Univ Ulsan, Asan Med Ctr, Dept Pediat, Coll Med,Childrens Hosp, Seoul, South Korea
[12] Woori Childrens Hosp, Dept Nephrol, Seoul, South Korea
[13] Yeungnam Univ, Dept Pediat, Coll Med, Gyongsan, South Korea
[14] Ajou Univ, Dept Pediat, Sch Med, Suwon, South Korea
[15] Catholic Univ Korea, Bucheon St Marys Hosp, Coll Med, Dept Pediat, Bucheon St, Seoul, South Korea
[16] Yonsei Univ, Wonju Severance Christian Hosp, Dept Pediat, Wonju Coll Med, Wonju, South Korea
[17] WooYeong Chung Pediat Clin, Busan, South Korea
[18] Inha Univ, Inha Univ Hosp, Dept Pediat, Coll Med, Incheon, South Korea
[19] Chungnam Natl Univ Hosp, Dept Pediat, Daejeon, South Korea
[20] Inje Univ, Dept Pediat, Ilsan Paik Hosp, Goyang, South Korea
[21] Jeonbuk Natl Univ, Dept Pediat, Med Sch, Jeonju, South Korea
[22] Seoul Natl Univ, Bundang Hosp, Dept Pathol, Seongnam, South Korea
[23] Seoul Natl Univ, Coll Med, Seongnam, South Korea
[24] Seoul Natl Univ, Dept Pediat, Childrens Hosp, Seoul, South Korea
[25] Seoul Natl Univ, Kidney Res Inst, Med Res Ctr, Seoul, South Korea
[26] Seoul Red Cross Hosp, Dept Pediat, Seoul, South Korea