Affiliation: | (1) Department of Paediatrics, Kansai Medical University, 10-15 Fumizonocho, 570-8506 Moriguchi, Osaka, Japan;(2) Department of Neurosurgery, Kansai Medical University, Osaka, Japan;(3) Department of Orthopaedic Surgery, Matsushita Memorial Hospital, Moriguchi, Osaka, Japan |