1. Degenerative Spinal Deformity: Creating Lordosis in the Lumbar Spine
Sigurd Berven, MD 
Neurosurgery Clinics 
Volume 29, Issue 3, Pages xiii-xiv (July 2018)
DOI: /j.nec
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2. Sigurd Berven, MD, Editor
Neurosurgery Clinics  , xiii-xivDOI: ( /j.nec )
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3. Praveen V. Mummaneni, MD, Editor
Neurosurgery Clinics  , xiii-xivDOI: ( /j.nec )
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