Randomized clinical trials in periodontology: ethical considerations.

MLA

Levine, R. J., and D. K. Dennison. “Randomized Clinical Trials in Periodontology: Ethical Considerations.” Annals of Periodontology, vol. 2, no. 1, Mar. 1997, pp. 83–94. EBSCOhost, https://doi.org/10.1902/annals.1997.2.1.83.

APA

Levine, R. J., & Dennison, D. K. (1997). Randomized clinical trials in periodontology: ethical considerations. Annals of Periodontology, 2(1), 83–94. https://doi.org/10.1902/annals.1997.2.1.83

Chicago

Levine, R J, and D K Dennison. 1997. “Randomized Clinical Trials in Periodontology: Ethical Considerations.” Annals of Periodontology 2 (1): 83–94. doi:10.1902/annals.1997.2.1.83.