1. Global Initiative for Chronic Obstructive Lung Disease. Global strategy for the diagnosis, management, and prevention of chronic obstructive pulmonary disease (2021 report). 2021 Available from: https://goldcopd.org/wp-content/uploads/2020/11/GOLD-REPORT-2021-v1.1-25Nov20_WMV.pdf. Accessed February 4, 2021.
2. COPD prevalence in a random population survey: a matter of definition
3. Telfar Barnard L, Zhang J. The impact of respiratory disease in New Zealand: 2018 update. Asthma and Respiratory Foundation New Zealand. 2018. Available from: https://s3-ap-southeast-2.amazonaws.com/assets.asthmafoundation.org.nz/images/NZ-Impact-Report-2018_FINAL.pdf. Accessed April 20, 2021.
4. Ministry of Health. Health loss in New Zealand: a report from the New Zealand burden of diseases, injuries and risk factors study, 2006–2016. 2013. Available from: https://www.moh.govt.nz/notebook/nbbooks.nsf/0/F85C39E4495B9684CC257BD3006F6299/$file/health-loss-in-new-zealand-final.pdf. Accessed September 11, 2020.