1. Anspach RR (1993) Deciding who lives: fateful choices in the intensive-care nursery. University of California Press, Berkeley
2. Beauchamp TL, Childress JF (2001) Principles of biomedical ethics, 5th edn. Oxford University Press, Oxford
3. Beecher HK (1966) Ethics and clinical research. N Engl J Med 274(24):1354–1360
4. Callahan D (1999) The social sciences and the task of bioethics. Daedalus 128(4):275–294
5. De Vries R (1995) Toward a sociology of bioethics. Qual Sociol 18(1):119–128