Spine
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Retrospective case-controlled study. ⋯ 4.
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Cadaveric study to accurately measure lumbar neuroforaminal area and height throughout the flexion-extension range of motion (ROM). ⋯ N/A.
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Observational Study
Validation of the Roland Morris Questionnaire in Colombia to Evaluate Disability in Low Back Pain.
An observational study was performed to validate a scale. ⋯ 3.