1. Cleveland Clinic Lerner College of Medicine, Cleveland, Ohio
2. Cleveland Clinic Center for Spine Health, Cleveland Clinic, Cleveland, Ohio3Department of Neurological Surgery, Cleveland Clinic, Cleveland, Ohio
3. Department of Neurological Surgery, Johns Hopkins Medicine, Baltimore, Maryland
4. Cleveland Clinic Center for Spine Health, Cleveland Clinic, Cleveland, Ohio
5. Cleveland Clinic Lerner College of Medicine, Cleveland, Ohio2Cleveland Clinic Center for Spine Health, Cleveland Clinic, Cleveland, Ohio3Department of Neurological Surgery, Cleveland Clinic, Cleveland, Ohio