[1] Department of Pediatrics,
[2] Chiba University School of Medicine,undefined
[3] 1-8-1 Inohana,undefined
[4] Chuou-ku,undefined
[5] Chiba-shi,undefined
[6] Chiba 260-8670,undefined
[7] Japan Tel. +81-43-226-2144; Fax +81-43-226-2145 e-mail: aogawa@pediat3.m.chiba-u.ac.jp,undefined
[8] Division of Metabolism,undefined
[9] Chiba Children's Hospital,undefined
[10] Chiba,undefined
[11] Japan,undefined
[12] Division of Pediatrics,undefined
[13] National Sanatorium Shimoshizu Hospital,undefined
[14] Chiba,undefined
[15] Japan,undefined