Patients were classified as steroid sensitive ( SS ) if their morning FEV1 increased > 30% after a 1-wk course of oral prednisone 20 mg twice daily and steroid resistant ( SR ) if they failed to increase > 15% .
patients were classified as steroid sensitive ( ss ) if their morning fev1 increased > 30% after a 1-wk course of oral prednisone 20 mg twice daily and steroid resistant ( sr ) if they failed to increase > 15% .
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