APA (7th ed.) Citation

Liu, H., Qi, Q., Duan, Y., Ma, C., & Zhou, C. (2022). Sex and macroeconomic differences and trends in early attempts at cigarette smoking among adolescents: Findings from 147 countries. BMC Medicine, 20(1), 1. https://doi.org/10.1186/s12916-022-02512-z

Chicago Style (17th ed.) Citation

Liu, Huaqing, Qi Qi, Ying Duan, Chuanwei Ma, and Chengchao Zhou. "Sex and Macroeconomic Differences and Trends in Early Attempts at Cigarette Smoking Among Adolescents: Findings from 147 Countries." BMC Medicine 20, no. 1 (2022): 1. https://doi.org/10.1186/s12916-022-02512-z.

MLA (9th ed.) Citation

Liu, Huaqing, et al. "Sex and Macroeconomic Differences and Trends in Early Attempts at Cigarette Smoking Among Adolescents: Findings from 147 Countries." BMC Medicine, vol. 20, no. 1, 2022, p. 1, https://doi.org/10.1186/s12916-022-02512-z.