Age, neutrophil lymphocyte ratio, and radiographic assessment of the quantity of lung edema (RALE) score to predict in-hospital mortality in COVID-19 patients: a retrospective study

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Cases of pneumonia of unknown etiology were first reported in the city of Wuhan, China, at the end of December 2019. After identification, the etiology of these cases was a new type of coronavirus (. Since December 2019, more than 20 million people have been diagnosed with COVID-19, and more than 700,000 have died (. Several studies have found risk factors related to COVID-19 mortality (n