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Coronavirus disease 2019 (COVID‐19) broke out in Wuhan, Hubei, China in December 2019. Tens thousands of people have been infected with the disease. Our aim was to distinguish severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2)‐positive patients from SARS‐CoV‐2‐negative patients. We retrospectively compared the data of COVID‐19 patients with those of suspected and confirmed SARS‐CoV‐2‐negative...
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