APA (7th ed.) Citation

H, Z., M, B., X, H., & Y, D. (2026). Analysis of clinical features of AECOPD at different altitudes and GOLD stages in high-altitude regions. BMJ open respiratory research, 13(1), . https://doi.org/10.1136/bmjresp-2025-003876

Chicago Style (17th ed.) Citation

H, Zhou, Bian M, Huang X, and Deji Y. "Analysis of Clinical Features of AECOPD at Different Altitudes and GOLD Stages in High-altitude Regions." BMJ Open Respiratory Research 13, no. 1 (2026). https://doi.org/10.1136/bmjresp-2025-003876.

MLA (9th ed.) Citation

H, Zhou, et al. "Analysis of Clinical Features of AECOPD at Different Altitudes and GOLD Stages in High-altitude Regions." BMJ Open Respiratory Research, vol. 13, no. 1, 2026, https://doi.org/10.1136/bmjresp-2025-003876.