A new study shows hundreds of women in the United States have been arrested, forced to undergo unwanted medical procedures, and locked up in jails or psychiatric institutions -- because they were pregnant.

National Advocates for Pregnant Women found 413 cases when pregnant women were deprived of their physical liberty between 1973, when Roe v. Wade was decided, and 2005. At least 250 more interventions have taken place since then. In one case, a court ordered a critically ill woman in Washington, D.C., to undergo a C-section against her will. Neither she nor the baby survived. In another case, a judge in Ohio kept a woman imprisoned to prevent her from having an abortion.