APA (7th ed.) Citation

L, Q., X, W., G, C., H, T., & H, S. (2026). Incidence and Risk Factors for Progression from Pre-COPD to COPD: A Systematic Review and Meta‑analysis. International journal of chronic obstructive pulmonary disease, 21, 566518. https://doi.org/10.2147/COPD.S566518

Chicago Style (17th ed.) Citation

L, Qiao, Wu X, Chen G, Tang H, and Shen H. "Incidence and Risk Factors for Progression from Pre-COPD to COPD: A Systematic Review and Meta‑analysis." International Journal of Chronic Obstructive Pulmonary Disease 21 (2026): 566518. https://doi.org/10.2147/COPD.S566518.

MLA (9th ed.) Citation

L, Qiao, et al. "Incidence and Risk Factors for Progression from Pre-COPD to COPD: A Systematic Review and Meta‑analysis." International Journal of Chronic Obstructive Pulmonary Disease, vol. 21, 2026, p. 566518, https://doi.org/10.2147/COPD.S566518.