1. World Health Organisation. COVID Data Tracker. WHO Coronavirus (COVID-19)Dashboard; 2022. Aailable from: https://covid19.who.int/. Accessed November 20, 2023.
2. 2023 GOLD Report Global Initiative for Chronic Obstructive Lung Disease - GOLD; 2022. Available fom: https://goldcopd.org/2023-gold-report-2/. Accessed November 20, 2023.
3. World Health Organization (WHO), COPD; 2015. Available from: https://www.who.int/news-room/fact-sheets/detail/chronic-obstructive-pulmonary-disease-copd. Accessed November 20, 2023.
4. FastStats. Centers for Disease Control and Prevention (2020); 2022. Available from: https://www.cdc.gov/nchs/fastats/leading-causes-of-death.htm. Accessed Nov 20, 2023.
5. Impact of exacerbations on COPD