^○Yumiko Oono, Shuji Matsui, Keiko Wada, Michiko Makino, Mitsunobu Matsuda, Keiko Akahoshi, Masuko Funahashi, Toshihide Shiiki (The Tokyo Children rehabilitation's hospital, Tokyo, Japan)

^○Ryuta Tanaka¹, Jun-ichi Arai², Tatsuo Kono³, Nobuaki Iwasaki⁴ (1.Department of Pediatrics, Ibaraki Children's Hospital, Mito, Japan, 2.Department of Neonatology, Ibaraki Children's Hospital, Mito, Japan, 3.Department of Radiology, Tokyo Metropolitan Children's Medical Center, Futyu, Japan, 4.Department of Pediatrics, Ibaraki Prefectural University of Health Sciences, Ami, Japan)

^○Mai Kuroda¹, Shinichiro Hamano², Yuri Narita¹, Masaki Shimizu³ (1.Center for Child Health and Human Development, Saitama Children's Medical Center, Saitama, Japan, 2.Division of Neurology, Saitama Children's Medical Center,Saitama, Japan, 3.Division of Neonatology,Saitama Children's Medical Center, Saitama, Japan)

^○Akihito Takeuchi¹, Noriko Sugino², Makio Oka³, Tatsuya Ogino⁴, Tatsuya Koeda⁵, Kazuo Sato⁶, Toshimitsu Takayanagi⁷ (1.Division of Neonatology, National Hospital Organization Okayama Medical Center, Okayama, Japan, 2.Division of Neonatology, National Hospital Organization Mie Chuou Medical Center, Tsu, Japan, 3.Department of Child Neurology, Okayama University Hospital, Okayama, Japan, 4.Faculty of Children Studies, Chugokugakuen University, Okayama, Japan, 5.Department of Psychosocial Medicine, National Center for Child Health and Development, Tokyo, Japan, 6.National Kyushu Medical Center, Fukuoka, Japan, 7.Saga National Hospital, Saga, Japan)

^○Akihito Takeuchi¹, Noriko Sugino², Makio Oka³, Tatsuya Ogino⁴, Tatsuya Koeda⁵, Kazuo Sato⁶, Toshimitsu Takayanagi⁷ (1.Division of Neonatology, National Hospital Organization Okayama Medical Center, Okayama, Japan, 2.Division of Neonatology, National Hospital Organization Mie Chuou Medical Center, Tsu, Japan, 3.Department of Child Neurology, Okayama University Hospital, Okayama, Japan, 4.Faculty of Children Studies, Chugokugakuen University, Okayama, Japan, 5.Department of Psychosocial Medicine, National Center for Child Health and Development, Tokyo, Japan, 6.National Kyushu Medical Center, Fukuoka, Japan, 7.Saga National Hospital, Saga, Japan)

^○Miho Fukui¹, Mari Hatanaka¹, Mekumi Mizuta², Naoko Kurimoto², Takashi Takeshita², Tomohito Okumura², Shuichi Shimakawa¹, Eiji Wakamiya³, Hiroshi Tamai¹ (1.Department of Pediatrics,Osaka Medical College, Osaka, Japan, 2.LD Center, Osaka Medical College, Osaka, Japan, 3.Department of Nursing, Faculty of Nursing and Rehabilitations, Aino University, Osaka, Japan)