APA (7th ed.) Citation

Clarke, R., Lewington, S., & Landray, M. (2003). Homocysteine, renal function, and risk of cardiovascular disease.

Chicago Style (17th ed.) Citation

Clarke, R., S. Lewington, and M. Landray. Homocysteine, Renal Function, and Risk of Cardiovascular Disease. 2003.

MLA (9th ed.) Citation

Clarke, R., et al. Homocysteine, Renal Function, and Risk of Cardiovascular Disease. 2003.