APA (7th ed.) Citation

Alldred, S. K., Deeks, J. J., Guo, B., Neilson, J. P., & Alfirevic, Z. (2012). Second trimester serum tests for Down's Syndrome screening. Wiley.

Chicago Style (17th ed.) Citation

Alldred, S. Kate, Jonathan J. Deeks, Boliang Guo, James P. Neilson, and Zarko Alfirevic. Second Trimester Serum Tests for Down's Syndrome Screening. Wiley, 2012.

MLA (9th ed.) Citation

Alldred, S. Kate, et al. Second Trimester Serum Tests for Down's Syndrome Screening. Wiley, 2012.

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