1. World Health Organization. Available: http://www.who.int/mediacentre/factsheets/fs307/en/. Accessed 2014 November 25.
2. 6. Asthma;RF Lemanske Jr;J Allergy Clin Immunol,2003
3. Global Strategy for Asthma Management and Prevention, Global Initiative for Asthma (GINA) 2012. Available: http://www.ginasthma.org/. Accessed 2014 November 25.
4. Biochemical basis of asthma therapy;PJ Barnes;J Biol Chem,2011
5. Mast-cell infiltration of airway smooth muscle in asthma;CE Brightling;N Engl J Med,2002