Affiliation: | 1. Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH, USA;2. Center for Spine Health, Neurological Institute, Cleveland Clinic, Cleveland, OH, USA;3. Department of Orthopaedic Surgery, SUNY Downstate Medical Center, Brooklyn, NY, USA;4. Department of Neurosurgery, Cleveland Clinic Lerner College of Medicine, Cleveland, OH, USA |