25. Which of the following statements is not correct regarding the use of corticosteroids in patients with COPD? (A) Corticosteroids have been shown to decrease recovery time in patients with acute exacerbations of COPD (B) Corticosteroids have been shown to be beneficial in 10-15% of patients with stable COPD (C) Corticosteroids trials should be considered when a patient remains functionally impaired after conventional therapy (D) A single dose of intravenous methylprednisolone(100mg) has been shown to be as beneficial as a 3-day course in acute exacerbations of chronic bronchitis?