关键词:Roe v. Wade; Roe; 14th Amendment; Fourteenth Amendment; Due Process Clause; Fifth Amendment; abortion; fundamental right; Planned Parenthood v. Casey; Casey; partial-birth; partial birth; Partial-Birth Abortion Ban Act; Gonzales v. Carhart; Carhart; Gonzales; health exception; maternal health; health of mother; pre viability abortions pre-viability abortions; Stenberg v. Carhart; Stenberg; Nebraska