APA

Smith K., Lowther G., Maher E., Hourihan T., Wilkinson T. & Wolstenholme J. (19991118). The predictive value of findings of the common aneuploidies, trisomies 13, 18 and 21, and numerical sex chromosome abnormalities at CVS: experience from the ACC U.K. Collaborative Study. Association of Clinical Cytogeneticists Prenatal Diagnosis Working Party. : Prenatal diagnosis.

Chicago

Smith K, Lowther G, Maher E, Hourihan T, Wilkinson T and Wolstenholme J. 19991118. The predictive value of findings of the common aneuploidies, trisomies 13, 18 and 21, and numerical sex chromosome abnormalities at CVS: experience from the ACC U.K. Collaborative Study. Association of Clinical Cytogeneticists Prenatal Diagnosis Working Party. : Prenatal diagnosis.

Harvard

Smith K., Lowther G., Maher E., Hourihan T., Wilkinson T. and Wolstenholme J. (19991118). The predictive value of findings of the common aneuploidies, trisomies 13, 18 and 21, and numerical sex chromosome abnormalities at CVS: experience from the ACC U.K. Collaborative Study. Association of Clinical Cytogeneticists Prenatal Diagnosis Working Party. : Prenatal diagnosis.

MLA

Smith K, Lowther G, Maher E, Hourihan T, Wilkinson T and Wolstenholme J. The predictive value of findings of the common aneuploidies, trisomies 13, 18 and 21, and numerical sex chromosome abnormalities at CVS: experience from the ACC U.K. Collaborative Study. Association of Clinical Cytogeneticists Prenatal Diagnosis Working Party. : Prenatal diagnosis. 19991118.