APA (7th ed.) Citation

PN, L., & JS, F. (2010). Systematic review of the evidence relating FEV1 decline to giving up smoking. BMC medicine, 8, 84. https://doi.org/10.1186/1741-7015-8-84

Chicago Style (17th ed.) Citation

PN, Lee, and Fry JS. "Systematic Review of the Evidence Relating FEV1 Decline to Giving Up Smoking." BMC Medicine 8 (2010): 84. https://doi.org/10.1186/1741-7015-8-84.

MLA (9th ed.) Citation

PN, Lee, and Fry JS. "Systematic Review of the Evidence Relating FEV1 Decline to Giving Up Smoking." BMC Medicine, vol. 8, 2010, p. 84, https://doi.org/10.1186/1741-7015-8-84.