Fig. 1From: Use of leflunomide in patients with chronic hypersensitivity pneumonitisChart flow of cohort formation. MDD: Multidisciplinary discussion, cHP: Chronic Hypersensitivity pneumonitis, LEF: Leflunomide, AZA: Azathioprine, MMF: Mycophenolate mofetil, CYC: Cyclophosphamide. * 3 patients were excluded from subgroup analysis for missing radiographic dataBack to article page