Spine
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The RAND/UCLA Appropriateness Method is a well-established means of developing criteria for assessing the appropriateness of surgery in specific subpopulations. It involves a systematic review of the literature and ratings by a multidisciplinary panel of national experts. ⋯ 3.
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A longitudinal cohort study. ⋯ 3.
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A retrospective, consecutive case series. ⋯ 3.
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We investigated the association between ICAM-1, -2, -3 plasma levels and ankylosing spondylitis (AS) disease activity. ⋯ 5.
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Multicenter Study
Surgical Morbidity and Mortality Associated with Transoral Approach to the Cervical Spine.
A retrospective cohort analysis of prospectively collected data. ⋯ 4.