National Institute for Health and Clinical Excellence. (2010). Management of chronic obstructive pulmonary disease in adults in primary and secondary care. Retrieved from https:// www.nice.org.uk Rees, M. (2020). COPD stages and their symptoms . Retrieved from https://www.medicalnewstoday.com/articles/copd-stages Schermer , T., van Weel , C., Barten , F., Buffels , J., Chavannes, N., Kardas , P., … Yaman , H. (2008). Prevention and management of chronic obstructive pulmonary disease (COPD) in primary care: Position paper of the European Forum for Primary Care. Quality in Primary Care , 16 , 363–77. Solomen , S. (2019). Guidelines for the physiotherapy management of chronic obstructive pulmonary disease. Physiother ‑ J Indian Assoc Physiother , 13 , 66 ‑ 72 . Zeng, Y., Jiang, F., Chen, Y., Chen, P., & Cai , S. (2018). Exercise assessments and trainings of pulmonary rehabilitation in COPD: A literature review. International Journal of COPD , 13 , 2013–2023.