*Corresponding author
Yuichi Akaba, MD
Department of Pediatrics, Asahikawa Medical University
2-1-1-1 Midorigaoka-Higashi,
Asahikawa, Hokkaido 078-8510, Japan
Tel: +81-166-68-2483, Fax: +81-166-68-2489
E-mail:akaba5p@asahikawa-med.ac.jp