Fig. 1From: Idiopathic pulmonary fibrosis in the United States: time to diagnosis and treatmentYear of Idiopathic Pulmonary Fibrosis Diagnosis. (A serial evaluation of the relative numbers of IPF cases diagnosed in each year of the study. Shown are the percentages of the total number of patients diagnosed with IPF in the cohort (total N = 44,891) that received their index diagnosis of IPF in each designated year)Back to article page