APA (7th ed.) Citation

RE, P. (2020). Does Cigarette Smoking Protect Against SARS-CoV-2 Infection? Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco, 22(9), 1666. https://doi.org/10.1093/ntr/ntaa073

Chicago Style (17th ed.) Citation

RE, Propper. "Does Cigarette Smoking Protect Against SARS-CoV-2 Infection?" Nicotine & Tobacco Research : Official Journal of the Society for Research on Nicotine and Tobacco 22, no. 9 (2020): 1666. https://doi.org/10.1093/ntr/ntaa073.

MLA (9th ed.) Citation

RE, Propper. "Does Cigarette Smoking Protect Against SARS-CoV-2 Infection?" Nicotine & Tobacco Research : Official Journal of the Society for Research on Nicotine and Tobacco, vol. 22, no. 9, 2020, p. 1666, https://doi.org/10.1093/ntr/ntaa073.