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<ahref="https://plu.mx/plum/a/?doi=10.4093%2Fdmj.2019.0216"data-popup="right"data-size="large"class="plumx-plum-print-popup"data-site="plum"data-hide-when-empty="true">Dipeptidyl Peptidase-4 inhibitors versus other antidiabetic drugs added to metformin monotherapy in diabetic retinopathy progression: A real world-based cohort study (Diabetes Metab J 2019;43:640-8)</a>
