Correspondence
Masataka Ishimura, MD, PhD, Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan. PHONE: +81-92-642-5421, FAX: +81-92-642-5435, E-mail: ischii@pediatr.med.kyushu-u.ac.jp