eighteen patients ( nine asthmatic patients and nine with poorly reversible airflow obstruction ) with stable , severe chronic airflow obstruction , completed a four-week randomized , doubled-blind , placebo-control , crossover trial comparing the acute and chronic effects of terbutaline administered by metered-dose inhaler ( mdi ) and nebulizer ( neb ) .
C0004096
asthmatic
C0039542
terbutaline