Affiliation: | 1. Department of Pediatrics, Seikeikai Hospital, , Sakai, Japan;2. Department of Pediatrics, Hirakata Municipal Hospital, , Hirakata, Japan;3. Department of Pediatrics, Osaka Medical College, , Takatsuki, Japan;4. Department of Child Neurology, Tanabe Kadobayashi Children's Clinic, , Hirakata, Japan |