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. 2024 Feb 27;11(1):e001997. doi: 10.1136/bmjresp-2023-001997

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© Author(s) (or their employer(s)) 2024. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

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Flow diagram of patient screening and enrolment. AAV-IP, antineutrophil cytoplasmic antibody-associated vasculitis with interstitial pneumonia; CHP, chronic hypersensitivity pneumonia; COP, cryptogenic organising pneumonia; CTD-ILD, connective tissue disease associated with interstitial lung disease; iNSIP, idiopathic non-specific interstitial pneumonia; IPF, idiopathic pulmonary fibrosis.