Fig. 2
From: Pulmonary arterial hypertension associated with interferon therapy: a population-based study

Time to the first diagnosis of pulmonary hypertension diagnosis after interferon treatment. The percentages of patients diagnosed with pulmonary hypertension by year 3, 6, and 9 were 0.36, 0.86 and 1.77%, respectively. IFN- interferons; PH- pulmonary hypertension