[1] St Lukes Int Univ, Grad Sch Publ Hlth, Tokyo, Japan
[2] Hyogo Prefectural Kobe Childrens Hosp, Kobe, Hyogo, Japan
[3] Miyagi Childrens Hosp, Sendai, Miyagi, Japan
[4] Tokyo Metropolitan Childrens Med Ctr, Tokyo, Japan
[5] Saitama Childrens Med Ctr, Saitama, Japan
[6] Japanese Red Cross Narita Hosp, Chiba, Japan
[7] Chiba Childrens Hosp, Chiba, Japan
[8] Aichi Med Univ Hosp, Nagakute, Aichi, Japan
[9] Natl Ctr Child Hlth & Dev, Tokyo, Japan
[10] NPO LD Dyslexia Ctr, Chiba, Japan