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Baseline characteristics of subjects
| Study | 1. High dose salbutamol | 2. Ipratropium |
| Number of subjects | 11 | 11 |
| Male | 3 | 3 |
| Age (range) | 37 (22 to 62) | 34 (19 to 53) |
| Number on inhaled steroids Dose range (μg)(budesonide equivalent) | 9 (200 to 1200) | 10 (200 to 2000) |
| FEV1% predicted at screening (range) | 79 (61 to 101) | 86 (65 to 103) |
