1. Respiratory symptoms and illness in older Australians: the Burden of Obstructive Lung Disease (BOLD) study
2. Australian Institute of Health and Welfare . Australia's health 2018. Australia's health series no. 16 Cat. no. 221. Canberra, AIHW, 2018.
3. World Health Organisation (WHO). Chronic respiratory diseases. Burden of COPD. 2019. www.who.int/respiratory/copd/burden/en/. Date last accessed: July 19, 2019.
4. GOLD. Global Strategy for the Diagnosis, Prevention, and Management of Chronic Obstructive Pulmonary Disease. (2019 Report). https://goldcopd.org/wp-content/uploads/2018/11/GOLD-2019-v1.7-FINAL-14Nov2018-WMS.pdf.
5. Acute exacerbation of COPD;Ko;Respirology,2016