APA (7th ed.) Citation

LR, H., & SM, L. (2008). Modulation of breast cancer risk by nonsteroidal anti-inflammatory drugs. Journal of the National Cancer Institute, 100(20), 1420. https://doi.org/10.1093/jnci/djn347

Chicago Style (17th ed.) Citation

LR, Howe, and Lippman SM. "Modulation of Breast Cancer Risk by Nonsteroidal Anti-inflammatory Drugs." Journal of the National Cancer Institute 100, no. 20 (2008): 1420. https://doi.org/10.1093/jnci/djn347.

MLA (9th ed.) Citation

LR, Howe, and Lippman SM. "Modulation of Breast Cancer Risk by Nonsteroidal Anti-inflammatory Drugs." Journal of the National Cancer Institute, vol. 100, no. 20, 2008, p. 1420, https://doi.org/10.1093/jnci/djn347.

Warning: These citations may not always be 100% accurate.