"After Roe v. Wade, states repeatedly tested its boundaries, passing laws that made it difficult for some women to have an abortion. Many state laws were struck down by federal courts, and some appeals made it to the high court. For example, a Missouri law requiring a married woman to get her husband's consent for an abortion was struck down in 1976. A Minnesota law requiring minors to notify both parents before obtaining an abortion was overturned in 1990, because it failed to provide exceptions when parents refuse to consent or cannot be contacted."