title: Re: Yang JY, Song HS, Lee M, et al. Adjacent level ossification development after anterior cervical fusion without plate fixation. Spine 2009;34:30-3.
authors: Ling
authors: L
authors: Li
mesh_terms: D002574:Cervical Vertebrae / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D003627:Data Interpretation, Statistical; D006801:Humans; D009999:Ossification, Heterotopic / Q000000981:diagnostic imaging / Q000453:epidemiology* / Q000473:pathology; D017063:Outcome Assessment, Health Care / Q000379:methods; D011183:Postoperative Complications / Q000453:epidemiology* / Q000209:etiology / Q000473:pathology; D011859:Radiography; D016032:Randomized Controlled Trials as Topic / Q000592:standards; D015203:Reproducibility of Results; D012189:Retrospective Studies; D013123:Spinal Fusion / Q000009:adverse effects* / Q000295:instrumentation / Q000379:methods; D055009:Spondylosis / Q000601:surgery