1. Bioethics Centre, Dunedin School of Medicine, University of Otago, PO Box 56, Dunedin, 9054, New Zealand
2. Faculty of Law, Dunedin School of Medicine, University of Otago, PO Box 56, Dunedin, 9054, New Zealand
3. Department of Surgical Sciences, Dunedin School of Medicine, University of Otago, PO Box 56, Dunedin, 9054, New Zealand