1. Beauchamp, T.L., and J.F. Childress. 2013. Principles of biomedical ethics, 7th ed. Oxford: Oxford University Press.
2. Chan, S., and J. Harris. 2009. Free riders and pious sons: Why science research remains obligatory. Bioethics 23 (3): 161–171.
3. De Melo-Martin, I. 2008. Response to Rosamond Rhodes. Newsletter on Philosophy and Medicine 7 (2): 13–14.
4. Dworkin, R. 1986. Autonomy and the demented self. Milbank Quarterly 64: 4–16.
5. Faber, C. 2006. Whose body is it anyway? Justice and the integrity of the person. Oxford: Oxford University Press.