Here are a list of precedents for the case.
H.L. v. Matheson (1981): The Court held that a State could require a minor to notify her parents before proceeding with an abortion.
Webster v. Reproductive Health Services (1989): The Court said that the Constitution does not forbid a State or a city, pursuant to democratic processes, from expressing a preference for normal childbirth.
Maher v. Roe (1977): The Court said that Roe v. Wade did not declare an unqualified right to an abortion. Rather the right protects the woman from unduly burdensome interference with her freedom to decide whether to terminate her pregnancy.
Roe v. Wade (1973): The Court ruled that the Constitution protects a woman's right to terminate her pregnancy in its early stages.
Eisenstadt v. Baird (1972): The Court recognized the right of the individual to be free from unwarranted governmental intrusion into matters so fundamentally affecting a person as the decision whether to bear or beget a child.
Planned Parenthood v. Ashcroft (1983): The Court held that a statute which required parental consent was constitutional.
Thornburgh v. American College of Obstetricians and Gynecologists (1986): The Court ruled that it is within the province of the States to require a woman's voluntary and informed consent to an abortion.
Williamson v. Lee Optical (1955): The Court said that States may regulate medical procedures in ways rationally related to a legitimate state interest.