1. Global Asthma Network. The Global Asthma Report 2018. http://www.globalasthmareport.org Date last updated: 31 August, 2018. Date last accessed: 21 July, 2019.
2. Global Initiative for Asthma. Global Strategy for Asthma Management and Prevention, 2019. https://ginasthma.org/wp-content/uploads/2019/06/GINA-2019-main-report-June-2019-wms.pdf Last updated: June 2019. Date last accessed: 21 July, 2019.
3. Global Initiative for Asthma. Global Strategy for Asthma Management and Prevention, 2018. https://ginasthma.org/archived-reports/ Date last updated: 31 August, 2018. Date last accessed: 21 July, 2019.
4. British Thoracic Society. Scottish Intercollegiate Guidelines Network: British Guideline on the Management of Asthma. 2014. https://www.brit-thoracic.org.uk/qualityimprovement/guidelines/asthma/ Last updated: October 2014. Date last accessed: 21 July, 2019.
5. The further paradoxes of asthma management: time for a new approach across the spectrum of asthma severity