Letter to the Editor in response to: "A critical appraisal of the North American Spine Society guidelines with the Appraisal of Guidelines for Research and Evaluation II instrument"

Affiliations

• ¹ NASS Evidence Compilation and Analysis Chair, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis St, Boston, MA 02115, USA.
• ² NASS Clinical Research Development Chair, Department of Neurosurgery, Lahey Hospital & Medical Center, Burlington, MA, USA.
• ³ NASS Evidence-Based Guideline Development Committee Co-Chair, Neurosurgery & Neurology, LLC, Chesterfield, MO, USA.
• ⁴ NASS Evidence-Based Guideline Development Committee Co-Chair, Ahwatukee Sports & Spine, Phoenix, AZ, USA.
• ⁵ NASS Research Council Director, Department of Orthopedic Surgery, Medical University of South Carolina, Charleston, SC, USA.