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Prevalence of extended radiologic signs in different contexts. Abbreviations: VEP—vascular enlargement pattern; TIB—tree in bud; PN—peripheral nodules; GGO—ground glass opacities; CP—crazy paving; Cons—consolidations. Notes: Graphs show the prevalence of VEP, TIB and PN involving 3 or more lobes and GGO, CP and Cons extended for over the 50% of pulmonary parenchyma. *p < 0.05 at Chi-square test
