Fig. 2From: Prognostic differences among patients with idiopathic interstitial pneumonias with acute exacerbation of varying pathogenesis: a retrospective studyDifferences in seasonal incidence of AE-IIPs among the three groups. Blue, green, red, and black bars indicate the number of patients with idiopathic, infection-triggered, non-infection-triggered, and total AE-IIPs, respectivelyBack to article page