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Flow diagram of the 265 participants included in the retrospective cohort study. ANCA, antineutrophil cytoplasmic autoantibody; AAV, antineutrophil cytoplasmic autoantibody–associated vasculitis; EGPA, eosinophilic granulomatosis with polyangiitis; GPA, granulomatosis with polyangiitis; ILD, interstitial lung disease; MPA, microscopic polyangiitis.
