title: Heterotopic ossification and clinical outcome in nonconstrained cervical arthroplasty.
authors.affiliation: Department of Neurosurgery, Seoul National University Boramae Hospital, Seoul, Korea.
authors.forename: Sung Bae
authors.initials: SB
authors.lastname: Park
authors.affiliation: Department of Neurosurgery, Inje University College of Medicine, Seoul Paik Hospital, Seoul, Korea.
authors.forename: Young Jun
authors.initials: YJ
authors.lastname: Jin
authors.affiliation: Department of Neurosurgery, Seoul National University Bundang Hospital, Seongnam, Korea.
authors.forename: Ki-Jeong
authors.initials: KJ
authors.lastname: Kim