^○MADOKA HOSHIDE^1,6, Rie Miyata^2,6, Masakazu Mimaki^3,6, Seigo Korematsu^4,6, Hideo Yamanouchi^5,6 (1.Department of Pediatrics, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan, 2.Department of Pediatrics, Tokyo-Kita Medical Center, Tokyo, Japan, 3.Department of Pediatrics, Teikyo University School of Medicine, Tokyo, Japan, 4.Educational Support for Regional Pediatrics, Oita University Faculty of Medicine, Oita, Japan, 5.Department of Pediatrics, Saitama Medical University, Saitama, Japan, 6.Clinical Safety Committee, The Japanese Society of Child Neurology, Tokyo, Japan)

^○YUSAKU MIYAMOTO^1,2, KAZUHIRO MURAMATSU^1,3 (1.Clinical Safety Committee, The Japanese Society of Child Neurology. Tokyo, Japan., 2.Division of Pediatrics, Kawasaki Municipal Tama hospital, St.Marianna Univercity School of Medicine. Kawasaki, Japan., 3.Department of Pediatrics, Gunma University Graduate School of Medicine. Gunma, Japan.)

^○SHOKO SHIMOKAWA^1,2, Hiroaki Sakamoto^2,3 (1.Department of Neurosurgery, Faculty of Medicine, Saga University, Saga, Japan, 2.Clinical safety committee, Japanese Society for Child Neurosurgery, Tokyo, Japan, 3.Department of Neurosurgery, Osaka City University Graduate School of Medicine, Osaka, Japan)

^○Gaku Yamanaka^1,2,3, hiroshi katsumori¹, isao kusakawa¹, noriko aida¹, yuki ikeyama¹, nobuaki inoue¹, kouji otake¹, syuji kuga¹, hirokazu sakai¹, hiroaki sakamato^1,2, miho hukui¹, masato nishihara¹, hideo yamanouti^1,2, syouri takahasi¹ (1.Japan Pediatric Society Committee on Patient Safety, Tokyo, Japan, 2.Japanese Pediatric Society of Childd Neurology Committee on Patient Safety, Tokyo, Japan, 3.Department of Pediatrics, Tokyo Medical University, Tokyo, Japan)