[1] Tokyo Med & Dent Univ TMDU, Grad Sch Med & Dent Sci, Dept Pediat & Dev Biol, 1-3-45 Yushima,Bunkyo Ku, Tokyo 1138519, Japan
[2] Seirei Sakura Citizen Hosp, Dept Nephrol, Sakura, Japan
[3] Saiseikai Takaoka Hosp, Dept Pediat, Takaoka, Japan
[4] Kyushu Univ, Grad Sch Med Sci, Dept Pediat, Fukuoka, Japan
[5] Kinki Univ, Fac Med, Dept Pediat, Osaka, Japan
[6] Oita Univ, Fac Med, Dept Pediat, Oita, Japan
[7] Dokkyo Med Univ, Saitama Med Ctr, Dept Pediat, Saitama, Japan
[8] Kaohsiung Med Univ, Natl Inst Canc Res, Natl Hlth Res Inst, Div Nephrol, Kaohsiung, Taiwan
[9] Univ Alabama Birmingham, Div Clin Immunol & Rheumatol, Birmingham, AL USA
[10] Univ Washington, Seattle Childrens Res Inst, Dept Pediat, Seattle, WA USA
[11] Tokyo Med & Dent Univ TMDU, Grad Sch Med & Dent Sci, Dept Child Hlth & Dev, 1-3-45 Yushima,Bunkyo Ku, Tokyo 1138519, Japan