O'Leary, P., Maxwell, S., Sinosich, M., DeVoss, K., Fletcher, J., Ranieri, E., & Metz, M. (2016). Screening for Down syndrome in the second trimester of pregnancy.
Chicago Style (17th ed.) CitationO'Leary, Peter, S. Maxwell, M. Sinosich, K. DeVoss, J. Fletcher, E. Ranieri, and M. Metz. Screening for Down Syndrome in the Second Trimester of Pregnancy. 2016.
MLA (9th ed.) CitationO'Leary, Peter, et al. Screening for Down Syndrome in the Second Trimester of Pregnancy. 2016.
Warning: These citations may not always be 100% accurate.