title: Thoracic spinal cord herniation in a patient with long-standing ankylosing spondylitis.
authors.affiliation: Spine Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Liu
authors.forename: Wei-jun
authors.initials: WJ
authors.lastname: Wang
authors.forename: Chao
authors.initials: C
authors.lastname: Sun
authors.forename: Zhe-zhang
authors.initials: ZZ
authors.lastname: Zhu
authors.forename: Yong
authors.initials: Y
authors.lastname: Qiu