1. Aquinas T . 2000. Sancti Thomae de Aquino: Opera Omnia Iussu Leonis XIII P. M. Edita. In Corpus Thomisticum [On-line]. Available: http://www.corpusthomisticum.org (accessed May 18, 2016).
2. Beauchamp T. L. and Childress J. F. . 2012. Principles of Biomedical Ethics. 7 th ed. Oxford: Oxford University Press.
3. Benedict XVI . 2010, February 13. Address to Members of the Pontifical Academy for Life [On-line]. Available: http://www.vatican.va/holy_father/benedict_xvi/speeches/2010/february/documents/hf_ben-xvi_spe_20100213_acdlife_en.html (accessed April 8, 2016).
4. Bioethics: Ethico-centric interdisciplinarity;Brugger;Quaestiones Disputatae,2014
5. Caputo J. D . 2003. Against principles: A sketch of an ethics without ethics. In The Ethical, eds. Wyschogrod E. and McKenny G. P. , 169–80. Oxford, UK: Blackwell Publishing.