Affiliation: | 1. Department of Neurological Surgery, Carolinas Medical Center, 1000 Blythe Boulevard, Charlotte, NC 28203, USA;2. University of North Carolina School of Medicine, 1000 Blythe Boulevard, Charlotte, NC 28203, USA;3. Carolina Neurosurgery and Spine Associates, 225 Baldwin Avenue, Charlotte, NC 28204, USA;4. Atrium Musculoskeletal Institute, Charlotte, NC, USA |