APA (7th ed.) Citation

Clarke, R., & Lewington, S. (2002). Homocysteine and coronary heart disease.

Chicago Style (17th ed.) Citation

Clarke, R., and S. Lewington. Homocysteine and Coronary Heart Disease. 2002.

MLA (9th ed.) Citation

Clarke, R., and S. Lewington. Homocysteine and Coronary Heart Disease. 2002.

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