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Computed tomography features of coronavirus disease 2019 pneumonia. (A) Reticular pattern. (B) Halo sign (Ground-glass opacities with centrally consolidation). (C) Reverse halo sign (a ground-glass opacity area in the center and completely surrounded by high-density consolidation). (D) Vascular enlargement. (E) Air-bubble sign. (F) Air bronchogram appear on the background of consolidation and ground-glass opacities.
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