- Correspondence to: David Hunter Lecturer in Bioethics, School of Biomedical Sciences, University of Ulster, Cromore Road, Coleraine, Co Londonderry, BT52 1SA, UK;
- Received June 9, 2006
- Accepted October 16, 2006
- Revised October 15, 2006
- First published August 30, 2007.
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