title: 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".
authors.affiliation: NASS Evidence Compilation and Analysis Chair, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis St, Boston, MA 02115, USA.
authors.forename: Charles H
authors.initials: CH
authors.lastname: Cho
authors.affiliation: NASS Clinical Research Development Chair, Department of Neurosurgery, Lahey Hospital & Medical Center, Burlington, MA, USA.
authors.forename: Zoher
authors.initials: Z
authors.lastname: Ghogawala
authors.affiliation: NASS Evidence-Based Guideline Development Committee Co-Chair, Neurosurgery & Neurology, LLC, Chesterfield, MO, USA.
authors.forename: Paul
authors.initials: P
authors.lastname: Matz
authors.affiliation: NASS Evidence-Based Guideline Development Committee Co-Chair, Ahwatukee Sports & Spine, Phoenix, AZ, USA.
authors.forename: D Scott
authors.initials: DS
authors.lastname: Kreiner
authors.affiliation: NASS Research Council Director, Department of Orthopedic Surgery, Medical University of South Carolina, Charleston, SC, USA.
authors.forename: Charles
authors.initials: C
authors.lastname: Reitman
mesh_terms: D003695:Delivery of Health Care / Q000592:standards*; D006801:Humans; D019637:Orthopedic Procedures / Q000592:standards*; D017410:Practice Guidelines as Topic / Q000592:standards*; D016730:Program Development / Q000379:methods*; D012955:Societies, Medical / Q000592:standards*