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C Echevarria, J Steer, G J Gibson, et al. P137: Internal validation of the DECAF score as a predictor of inpatient mortality in acute exacerbations of COPD. Thorax 2013;63(Suppl 3):A138. doi: 10.1136/thoraxjnl-2013-204457.287
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Table 1
Results of interim analysis
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