[1] Department of Paediatrics,
[2] Ehime Prefectural Imabari Hospital,undefined
[3] 4 Ishii-cho,undefined
[4] Imabari,undefined
[5] Ehime 794-0006,undefined
[6] Japan e-mail: fukudami@dokidoki.ne.jp Tel.: +81-898-327111,undefined
[7] Fax: +81-898-221398,undefined
[8] Department of Paediatrics,undefined
[9] Ehime University School of Medicine,undefined
[10] Ehime,undefined
[11] Japan,undefined
[12] Department of Neurology,undefined
[13] University of Occupational and Environmental Health,undefined
[14] Kitakyushu,undefined
[15] Japan,undefined