• References

    Chorionic villus sampling (CVS). American Pregnancy Association website. Available at: Updated April 2006. Accessed March 12, 2013.

    Screening and monitoring during pregnancy. EBSCO DynaMed website. Available at: Updated March 21, 2013. Accessed March 12, 2013.

  • Resources

    American Congress of Obstetricians and Gynecologists

    American Pregnancy Association

  • Canadian Resources

    The Society of Obstetricians and Gynaecologists of Canada

    Women's Health Matters