APA (7th ed.) Citation

Zhai, L., Gong, H., & Yu, W. The link between smoking, emphysema, and fibrosis: A retrospective cohort study. European Publishing.

Chicago Style (17th ed.) Citation

Zhai, Liying, Haihong Gong, and Wencheng Yu. The Link Between Smoking, Emphysema, and Fibrosis: A Retrospective Cohort Study. European Publishing.

MLA (9th ed.) Citation

Zhai, Liying, et al. The Link Between Smoking, Emphysema, and Fibrosis: A Retrospective Cohort Study. European Publishing.

Warning: These citations may not always be 100% accurate.