Grol, M.H.

study group treatment beclomethasone salmeterol patient inhaled bdp 400 salm children asthma fev 1 period inhaled corticosteroid airway bdp 400 group bdp 400 groups inhaled corticosteroids symptom corticosteroid bdp 800 group effect change airway responsiveness beclomethasone 200 g salbutamol methacholine salmeterol 50 g hospital difference treatment groups treatment period pd 20 baseline function beclomethasone 400 g medication corticosteroids respir asthmatic children responsiveness asthmatic measurement growth improvement 400 g beclomethasone 200 g beclomethasone value symptom scores comparison study medication pd 20 methacholine adult kerrebijn visit number analysis inhalation van essen-zandvliet duiverman figure run-in period circle addition run-in morning evening 1992. beclomethasone 500 g height verberne airway caliber result adult studies preintervention levels level compliance lung function clinic course rescue salbutamol