APA (7th ed.) Citation

Zhao, Y., Li, S., Chen, X., & Yu, Z. Chronic obstructive pulmonary disease as a risk factor for cognitive impairment: A systematic review and meta-analysis. BMJ Publishing Group.

Chicago Style (17th ed.) Citation

Zhao, Yang, Shu Li, Xia Chen, and Zhenjie Yu. Chronic Obstructive Pulmonary Disease as a Risk Factor for Cognitive Impairment: A Systematic Review and Meta-analysis. BMJ Publishing Group.

MLA (9th ed.) Citation

Zhao, Yang, et al. Chronic Obstructive Pulmonary Disease as a Risk Factor for Cognitive Impairment: A Systematic Review and Meta-analysis. BMJ Publishing Group.