1. Scottish Intercollegiate Guidelines Network. British guideline on the management of asthma;Thorax,2003
2. Added salmeterol versus higher-dose corticosteroid in asthma patients with symptoms on existing inhaled corticosteroid;Greening;Lancet,1994
3. Effect of inhaled formoterol and budesonide on exacerbations of asthma. Formoterol and Corticosteroids Establishing Therapy (FACET) International Study Group;Pauwels;N Engl J Med,1997
4. Long-acting beta2-agonists for chronic asthma in adults and children where background therapy contains varied or no inhaled corticosteroid;Walters;Cochrane Database Syst Rev,2007
5. Long-term circadian effects of salmeterol in asthmatic children treated with inhaled corticosteroids;Meijer;Am J Respir Crit Care Med,1995