(Q31153692)
Statements
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Provider and center effect in multicenter randomized controlled trials of surgical specialties: an analysis on patient-level data (English)
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David J Biau
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Jens A Halm
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Hamid Ahmadieh
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William N Capello
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Johannes Jeekel
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1 May 2008
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247
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892-898
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Identifiers
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