From the *Department of Orthopaedic Surgery, Stanford University School of Medicine, Palo Alto, CA; †Department of Family Medicine, Oregon Health and Science University, Portland, OR; ‡Research Department, Kovacs Foundation, Palma de Mallorca, Spain; §Spanish Back Pain Research Network; ¶Department of Neurosurgery, Leiden University Medical Center, Leiden, The Netherlands; ∥Department of Medicine, Dartmouth Medical School, Hanover, NH; **Iberoamerican Cochrane Center, Servei d'Epidemiologia i Salut Pública, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain; ††University of Minnesota, Clinical Outcomes Research Center, Minneapolis, MN; ‡‡Corbin and Company; and §§The Back Letter, Newbury, MA.
Acknowledgment date: September 25, 2008. Acceptance date: December 10, 2008.
The manuscript submitted does not contain information about medical device(s)/drug(s).
No funds were received in support of this work. No benefits in any form have been or will be received from a commercial party related directly or indirectly to the subject of this manuscript.
Address correspondence and reprint requests to Eugene J. Carragee, MD, FACS, Department of Orthopaedic Surgery, Stanford University School of Medicine; Orthopaedic Spine Center and Spinal Surgery Service, Stanford University Hospital and Clinics, Stanford, CA; E-mail: email@example.com.