APA (7th ed.) Citation

Den Heijer, M., Lewington, S., & Clarke, R. (2005). Homocysteine, MTHFR and risk of venous thrombosis: A meta-analysis of published epidemiological studies.

Chicago Style (17th ed.) Citation

Den Heijer, M., S. Lewington, and R. Clarke. Homocysteine, MTHFR and Risk of Venous Thrombosis: A Meta-analysis of Published Epidemiological Studies. 2005.

MLA (9th ed.) Citation

Den Heijer, M., et al. Homocysteine, MTHFR and Risk of Venous Thrombosis: A Meta-analysis of Published Epidemiological Studies. 2005.