S M Carter1, W Rogers2, I Heath3, C Degeling4, J Doust5, A Barratt6. 1. Centre for Values, Ethics and the Law in Medicine, University of Sydney, NSW 2006, Australia stacy.carter@sydney.edu.au. 2. Philosophy Department and Australian School of Advanced Medicine, Macquarie University, NSW, Australia. 3. London, UK. 4. Centre for Values, Ethics and the Law in Medicine, University of Sydney, NSW 2006, Australia. 5. Faculty of Health Sciences and Medicine, Bond University, Australia. 6. Sydney School of Public Health, Sydney, Australia.