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Chest CT imaging findings of COVID-19 pneumonia in a 56-year-old female patient presenting with fever (range:38.1-39℃) for five days. (a) GGO was presented in the upper lobes of bilateral lung with initial negative RT-PCR (arrow); (b) 6 days later, the upper lobes of bilateral lung show extensive consolidation and GGO while RT-PCR test turned positive. (arrow).
