Fig. 3From: Unmet needs in the treatment of idiopathic pulmonary fibrosis―insights from patient chart review in five European countriesOverall proportion of treated and untreated patients based on current disease severityClassification of disease severity was based on the subjective determination of individual physicians for each patient. For individual questions asked, please refer to Additional files 1 and 2. IPF idiopathic pulmonary fibrosisBack to article page