[1] Department of Biology,
[2] Faculty of Sciences,undefined
[3] Kyushu University Graduate School,undefined
[4] 6-10-1 Hakozaki,undefined
[5] Higashi-ku,undefined
[6] Fukuoka 812-8581,undefined
[7] Japan Tel. +81-92-642-2635; Fax +81-92-642-4214 e-mail: yfujiscb@mbox.nc.kyushu-u.ac.jp,undefined
[8] CREST,undefined
[9] Japan Science and Technology Corporation,undefined
[10] Tokyo,undefined
[11] Japan,undefined
[12] Department of Neurology and Pediatrics,undefined
[13] Kennedy-Krieger Institute,undefined
[14] Johns Hopkins University,undefined
[15] Baltimore,undefined
[16] MD,undefined
[17] USA,undefined
[18] Department of Pediatrics,undefined
[19] Johns Hopkins University,undefined
[20] Baltimore,undefined
[21] MD,undefined
[22] USA,undefined
[23] Department of Pediatrics,undefined
[24] Gifu University School of Medicine,undefined
[25] Gifu,undefined
[26] Japan,undefined