Study shows more than 400 women denied rights due to pregnancy

33 year-old and six month pregnant Spanish Rosa Maria Minguez Fito looks out from a window, inside the female prison of Santa Cruz do Bispo 23 November 2007, in Porto. Rosa Maria Minguez Fito, accused of illegal weapons traffic, waits for her trial to be scheduled and entered the jail on 28 July 2007. 300 female prisoners are kept in this prison, including two pregnant women and mothers with 15 children under the age of three, the limit for the child to remain with his mother in the jail. The prison opened in 2005 and has a fully equipped kindengarden. AFP PHOTO/ NICOLAS ASFOURI MORE COLOR AND BLACK-WHITE IMAGES AND TEXT AVAILABLE IN IMAGE FORUM / FEATURES SECTION (Photo credit should read NICOLAS ASFOURI/AFP/Getty Images)

Next Tuesday marks 40 years since the decision in the landmark Supreme Court case, Roe v. Wade. The issue of abortion has been a topic of debate ever since, as conservatives and liberals have fought over how to interpret the court's ruling.

Next Tuesday marks 40 years since the decision in the landmark Supreme Court case, Roe v. Wade. The issue of abortion has been a topic of debate ever since, as conservatives and liberals have fought over how to interpret the court's ruling.

That national conversation has also examined that gray area where the rights of the mother and of the fetus intersect. We recently came across a study put out by the Journal of Health, Politics and Policy and Law that says that, since Roe v. Wade, more than 400 women have been denied their rights because of their pregnancy.

Lynn Paltrow is a lead author of the study and the Executive Director of the National Advocates for Pregnant Women. We asked her what kind of cases she had looked at as part of her research.