Jun Muneuchi1, Yuichiro Sugitani2, Mamie Watanabe2. 1. Department of Pediatrics, Kyushu Hospital, Japan Community Healthcare Organization, 1-8-1, Kishinoura, Yahatanishi-ku, Kitakyushu, Fukuoka, 805-8501, Japan. jmune@msn.com. 2. Department of Pediatrics, Kyushu Hospital, Japan Community Healthcare Organization, 1-8-1, Kishinoura, Yahatanishi-ku, Kitakyushu, Fukuoka, 805-8501, Japan.