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The Conditional Effects of Multimorbidity on Operative Versus Nonoperative Management of Emergency General Surgery Conditions: A Retrospective Observational Study Using an Instrumental Variable Analysis.
Rosen CB, Roberts SE, Wirtalla CJ, Keele LJ, Kaufman EJ, Halpern SD, Reilly PM, Neuman MD, Kelz RR. Rosen CB, et al. Ann Surg. 2023 Oct 1;278(4):e855-e862. doi: 10.1097/SLA.0000000000005901. Epub 2023 May 22. Ann Surg. 2023. PMID: 37212397 Free PMC article.
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