Valved versus nonvalved cannula small-gauge pars plana vitrectomy for repair of retinal detachments with Grade C proliferative vitreoretinopathy

Patrick Oellers, Sandra Stinnett, Paul Hahn Duke Eye Center, Duke University School of Medicine, Durham, NC, USA Purpose: Valved cannulas are a recent addition to small-gauge pars plana vitrectomy (PPV) and provide stable intraocular fluidics.The goal of this study was to compare outcomes and postoperative complication rates of valved vs nonvalved

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Coronavirus disease 2019 and future pandemics: Impacts on livestock health and production and possible mitigation measures

The World Health Organization declared coronavirus disease 2019 (COVID-19) a pandemic on March 11, 2020.COVID-19, the current global health emergency, is wreaking havoc on human health systems and, to a lesser degree, on animals globally.The outbreak has continued since the first report of COVID-19 in China in December 2019, and the second and thir

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