Spine
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Markov cost-utility model. ⋯ 2.
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Validation study. ⋯ 3.
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A retrospective, radiographical study. ⋯ 4.
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Bibliometric review of the literature. ⋯ 3.
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A dissection-based study of 18 embalmed thoracic specimens. ⋯ N/A.