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1. Normalization of the prebronchodilator lung function parameters according to GLI reference values after one year of treatment.
Strongly disagree12345 Fully agree

2. Prebronchodilator value of FEV1>80% predicted after 12 months of treatment.
Strongly disagree12345 Fully agree

3. Prebronchodilator value of FEV1>80% predicted and FEV1/FVC>0.7 after one year of treatment.
Strongly disagree12345 Fully agree

4. Negative bronchial challenge test after one year of treatment.
Strongly disagree12345 Fully agree

5. Normalization of prebronchodilator FEV1 according to GLI reference with low variability during the bronchodilator testing at 12 months of treatment (Δ FEV1<12% and 200 mL).
Strongly disagree12345 Fully agree

6. Stability of the FEV1 on at least two measurements at different moments during the treatment (variation ± 100 mL over time) with a negative reversibility test (Δ FEV1<12% and 200 mL) and/or negative challenge test.
Strongly disagree12345 Fully agree