APA (7th ed.) Citation

Refsum, H., & Smith, A. (2006). Homocysteine, B vitamins, and cardiovascular disease.

Chicago Style (17th ed.) Citation

Refsum, H., and A. Smith. Homocysteine, B Vitamins, and Cardiovascular Disease. 2006.

MLA (9th ed.) Citation

Refsum, H., and A. Smith. Homocysteine, B Vitamins, and Cardiovascular Disease. 2006.

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