Spine
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Comparative Study
A Comparison of Back Pain Functional Scale with Roland Morris Disability Questionnaire, Oswestry Disability Index and Short Form 36-Health Survey.
A comparison study of Back Pain Functional Scale (BPFS) with Roland Morris Questionnaire (RMQ), Oswestry Disability Index (ODI), and Short Form 36-Health Survey (SF-36). ⋯ 2.
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A prospective cohort study. ⋯ 2.
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A prospective cohort study. ⋯ 3.
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Cross-sectional study. ⋯ 3.
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Cross-sectional autopsy study. ⋯ 3.