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. 2009 Oct 23;64(4):330–334. doi: 10.1136/jech.2008.081554

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Sensitivity and specificity of the trained algorithm. The dashed line represents the performance of the algorithm on the training dataset. Panels A to D use the full set of nine signs and symptoms. Panels E and F use a smaller set of five signs/symptoms available from the current INDEPTH tool.