title: Erratum: Replacement compared with anterior discectomy and fusion for treatment of 2-level symptomatic degenerative disc disease: a prospective, randomized, controlled, multicenter investigational device exemption clinical trial.
authors.affiliation: Director of Publications-Operations Journal of Neurosurgery Publishing Group, Charlottesville, VA.
authors.forename: Gillian
authors.initials: G
authors.lastname: Shasby