title: [The operative therapy for chronic back pain: a meta-analysis].
authors: Timmo
authors: T
authors: Koy
authors: Peer
authors: P
authors: Eysel
authors: Stefan
authors: S
authors: Sauderland
mesh_terms: D001416:Back Pain / Q000453:epidemiology* / Q000601:surgery* / Q000628:therapy; D002986:Clinical Trials as Topic; D006801:Humans; D010166:Palliative Care / Q000379:methods; D016896:Treatment Outcome