Norihito Mamiya, Junya Hirayama, Naoki Tsuboya, Takahide Kokumai, Tomoki Hattori, Takahiro Ito, Keishiro Amano, Hidemi Toyoda, Shotaro Iwamoto, Hiroki Hori, Masahiro Hirayama (Department of Pediatrics, Mie University Hospital, Mie, Japan)

Sachiyo Kamimura¹, Ai Yamada¹, Mariko Kinoshita¹, Daisuke Sawa¹, Yusuke Saito¹, Hiroshi Ikejiri², Takero Sakamoto², Etsuo Chosa², Norihiko Kitagawa³, Hiroshi Moritake¹ (1.Division of Pediatrics, University of Miyazaki, Miyazaki, Japan, 2.Division of Orthopaedic Surgery, University of Miyazaki, Miyazaki, Japan, 3.Department of Surgery, Kanagawa Children’s Medical Center, Kanagawa, Japan)

Ryo Akazawa¹, Katsutsugu Umeda¹, Keiji Tasaka¹, Tatsuya Kamitori¹, Itaru Kato¹, Hidefumi Hiramatsu¹, Akio Sakamoto², Takeshi Okamoto², Souichi Adachi³, Junko Takita¹ (1.Department of Pediatrics, Kyoto University Graduate School of Medicine, Kyoto, Japan, 2.Department of Orthopedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan, 3.Department of Human Health Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan)

Suguru Uemura, Takeshi Mori, Satoru Takafuji, Noriyuki Nishimura, Kazumoto Iijima (Department of Pediatrics, Kobe University Graduate School of Medicine, Kobe, Japan)