APA (7th ed.) Citation

Guo, Y., Xing, Z., Shan, G., Janssens, J., Sun, T., Chai, D., . . . Wang, C. (2020). Prevalence and Risk Factors for COPD at High Altitude: A Large Cross-Sectional Survey of Subjects Living Between 2,100–4,700 m Above Sea Level. Frontiers in Medicine, 7, 581763. https://doi.org/10.3389/fmed.2020.581763

Chicago Style (17th ed.) Citation

Guo, Yanfei, et al. "Prevalence and Risk Factors for COPD at High Altitude: A Large Cross-Sectional Survey of Subjects Living Between 2,100–4,700 M Above Sea Level." Frontiers in Medicine 7 (2020): 581763. https://doi.org/10.3389/fmed.2020.581763.

MLA (9th ed.) Citation

Guo, Yanfei, et al. "Prevalence and Risk Factors for COPD at High Altitude: A Large Cross-Sectional Survey of Subjects Living Between 2,100–4,700 M Above Sea Level." Frontiers in Medicine, vol. 7, 2020, p. 581763, https://doi.org/10.3389/fmed.2020.581763.