1. Emerging bioethical issues in health care: the challenge for biomedical engineering;Hendee;Crit. Rev. Biomed. Eng.,2000
2. The ‘four principles of bioethics’ as found in 13th century Muslim scholar Mawlana's teachings;Aksoy;BMC Med. Ethics,2002
3. In praise of unprincipled ethics;Harris;J. Med. Ethics,2003
4. Ask The Expert, “What is the difference between ethics, morals and values?” http://www.ethicsorg/ask_e4.html