title: Erratum to: Annual changes in radiographic indices of the spine in cerebral palsy patients.
authors.affiliation: Department of Orthopaedic Surgery, Ewha Womans University Mokdong Hospital, Seoul, Korea.|Department of Orthopaedic Surgery, School of Medicine, Inha University, 7-206, 3 Ga, Sinheung-Dong, Jung-Gu, Incheon, 400-711, Korea.
authors.forename: Seung Yeol
authors.initials: SY
authors.lastname: Lee
authors.affiliation: Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, 300 Gumi-Dong, Bundang-Gu, Sungnam, Kyungki, 463-707, Korea.
authors.forename: Chin Youb
authors.initials: CY
authors.lastname: Chung
authors.affiliation: Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, 300 Gumi-Dong, Bundang-Gu, Sungnam, Kyungki, 463-707, Korea.
authors.forename: Kyoung Min
authors.initials: KM
authors.lastname: Lee
authors.affiliation: Department of Mathematics, College of Natural Science, Ajou University, Suwon, Kyungki, Korea.
authors.forename: Soon-Sun
authors.initials: SS
authors.lastname: Kwon
authors.affiliation: Department of Orthopaedic Surgery, School of Medicine, Inha University, 7-206, 3 Ga, Sinheung-Dong, Jung-Gu, Incheon, 400-711, Korea. chokj@inha.ac.kr.
authors.forename: Kyu-Jung
authors.initials: KJ
authors.lastname: Cho
authors.affiliation: Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, 300 Gumi-Dong, Bundang-Gu, Sungnam, Kyungki, 463-707, Korea. pmsmed@gmail.com.
authors.forename: Moon Seok
authors.initials: MS
authors.lastname: Park