| Institution: | 1. Department of Orthopaedics, Spine Division, Upstate Medical University, Syracuse, NY;2. Department of Orthopaedics, Division of Spine, Emory University, Emory Spine Center, Atlanta, GA;1. Department of Orthopedic Surgery, Thomas Jefferson University Hospital, 925 Chestnut Street, Philadelphia, PA 19107;2. Rothman Institute, Philadelphia, PA;1. Department of Orthopaedic Surgery, Medical College of Wisconsin, 9200 W. Wisconsin Ave, Milwaukee, WI 53226;2. Department of Orthopaedics, Massachusetts General Hospital, Boston, MA;1. Department of Orthopaedics, University of Miami Miller School of Medicine, PO Box 016960 (D-27), Miami, FL 33101;2. Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, FL |
