APA (7th ed.) Citation

Han, S. Y., Chang, Y., Shin, H., Choi, C. Y., & Ryu, S. (2021). Smoking, urinary cotinine levels and incidence of visual impairment. Nature Portfolio.

Chicago Style (17th ed.) Citation

Han, So Young, Yoosoo Chang, Hocheol Shin, Chul Young Choi, and Seungho Ryu. Smoking, Urinary Cotinine Levels and Incidence of Visual Impairment. Nature Portfolio, 2021.

MLA (8th ed.) Citation

Han, So Young, et al. Smoking, Urinary Cotinine Levels and Incidence of Visual Impairment. Nature Portfolio, 2021.