1. Roe v. Wade 410 U.S. 113 (1973).
2. Medical Ethics;Haering,1973
3. Ethics at the Edge of Life;Ramsey,1978
4. Ethical perspectives on maternal serum alpha-fetoprotein screening;Walters,1980
5. Anencephaly: a review;Nakano;Dev. Med. Child. Neurol.,1973