Institution: | (1) Department of Pediatrics, Yamaguchi University School of Medicine, 1-1-1 Minamikogushi, Ube, Yamaguchi 755-8505, Japan, JP;(2) Department of Gynecology, Yamaguchi University School of Medicine, 1-1-1 Minamikogushi, Ube, Yamaguchi 755-8505, Japan, JP;(3) Department of Pediatrics, Saiseikai Yamaguchi Hospital, 2-11 Midorimachi, Yamaguchi 753-0078, Japan, JP |