APA (7th ed.) Citation

Greenhouse, J. B. (2009). Commentary: Cornfield, epidemiology and causality. International Journal of Epidemiology, 38(5), 1199. https://doi.org/10.1093/ije/dyp299

Chicago Style (17th ed.) Citation

Greenhouse, Joel B. "Commentary: Cornfield, Epidemiology and Causality." International Journal of Epidemiology 38, no. 5 (2009): 1199. https://doi.org/10.1093/ije/dyp299.

MLA (9th ed.) Citation

Greenhouse, Joel B. "Commentary: Cornfield, Epidemiology and Causality." International Journal of Epidemiology, vol. 38, no. 5, 2009, p. 1199, https://doi.org/10.1093/ije/dyp299.