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Variation between Hospitals with Regard to Diagnostic Practice, Coding Accuracy, and Case-Mix. A Retrospective Validation Study of Administrative Data versus Medical Records for Estimating 30-Day Mortality after Hip Fracture.
Helgeland J, Kristoffersen DT, Skyrud KD, Lindman AS. Helgeland J, et al. Among authors: kristoffersen dt. PLoS One. 2016 May 20;11(5):e0156075. doi: 10.1371/journal.pone.0156075. eCollection 2016. PLoS One. 2016. PMID: 27203243 Free PMC article.
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