APA (7th ed.) Citation

Williams, K. E., Reeves, K. R., Billing, C. B., Pennington, A. M., & Gong, J. (2007). A double-blind study evaluating the long-term safety of varenicline for smoking cessation. Current medical research and opinion, 23(4), 793-801. https://doi.org/10.1185/030079907X182185

Chicago Style (17th ed.) Citation

Williams, Kathryn E., Karen R. Reeves, Clare B. Billing, Ann M. Pennington, and Jason Gong. "A Double-blind Study Evaluating the Long-term Safety of Varenicline for Smoking Cessation." Current Medical Research and Opinion 23, no. 4 (2007): 793-801. https://doi.org/10.1185/030079907X182185.

MLA (9th ed.) Citation

Williams, Kathryn E., et al. "A Double-blind Study Evaluating the Long-term Safety of Varenicline for Smoking Cessation." Current Medical Research and Opinion, vol. 23, no. 4, 2007, pp. 793-801, https://doi.org/10.1185/030079907X182185.