"e.g. (> 40% diurnal variation 3,4 for > 50% of the time over a period of at least 150 days) despite considerable medical therapy including a dose of inhaled steroids of at least 1500 pg of beclomethasone or equivalent"
"e.g. (> 40% diurnal variation 3,4 for > 50% of the time over a period of at least 150 days) despite considerable medical therapy including a dose of inhaled steroids of at least 1500 pg of beclomethasone or equivalent"