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This article may be downloaded for personal use only. Permission to reproduce this article must be sought from Wiley-Blackwell. This is an author's accepted manuscript version of an article published in the Journal of law, medicine & ethics, 41(1): 199-123, 2013. More information about this journal may be available at http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1748-720X
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Copyright (2013) American Society of Law, Medicine & Ethics.