Spine
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Matched case-control epidemiological study. ⋯ 4.
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Factors predictive of increased surgical drain output after anterior cervical discectomy and fusion.
Retrospective cohort study. ⋯ 3.
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Randomized Controlled Trial Comparative Study
Bone marrow concentrate with allograft equivalent to autograft in lumbar fusions.
Prospective randomized study. ⋯ 2.
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A study on acute low back pain (LBP) in consecutive working patients in a multicenter study in general practice. ⋯ N/A.
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A prospective study. ⋯ 3.