1. Comparison of a β2-agonist, terbutaline, with an inhaled corticosteroid, budesonide, in newly detected asthma;Haahtela;N Engl J Med,1991
2. Effects of 22 months of treatment with inhaled corticosteroids and/or β2-agonists on lung function, airway responsiveness, and symptoms in children with asthma;van Essen-Zandvliet;Am Rev Respir Dis,1992
3. Effect of long-term treatment with an inhaled corticosteroid (budesonide) on airway hyperresponsiveness and clinical asthma in nonsteroid-dependent asthmatics;Juniper;Am Rev Respir Dis,1990
4. Clinical studies of β-agonists in adults;Tattersfield,1997
5. A comparison of salmeterol with albuterol in the treatment of mild-to-moderate asthma;Pearlman;N Engl J Med,1992