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Following publication of the original article [1], the authors reported an error in Fig. 4 in the PDF version. Figure 4 is the duplicate image of Fig. 3 and the correct figure is missing. The authors would like to apologize for this error. The correct figure is shown below.
Background Visual impairment from diabetic retinopathy (DR) is an increasing global public health concern, which is preventable with screening and early treatment. Digital retinal imaging has become a preferred choice as it enables higher coverage of screening. The aim of this review is to evaluate how different characteristics of the DR screening (DRS) test impact on diagnostic test accuracy (DTA)...
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