1. Beclomethasone versus placebo for chronic asthma;Adams;Cochrane Database of Systematic Reviews,2005
2. Fluticasone versus placebo for chronic asthma in adults and children;Adams;Cochrane Database of Systematic Reviews,2009
3. Stopping long-acting beta2-agonists (LABA) for adults with asthma well-controlled on LABA and inhaled corticosteroids;Ahmad;Cochrane Database of Systematic Reviews,2014
4. Prevalence of asthma;Anderson;BMJ,2005
5. National Asthma Council Australia Australian Asthma Handbook 2014, Version 1.0 www.asthmahandbook.org.au